Cool Tech JK Exhaust Kit

[nota4re]

Cool Tech LLC, is proud to announce the availability of an exhaust kit for the JK that was designed with the off-roader in mind. The Cool Tech kit improves the quality of the JK exhaust note by making it deeper and "throatier" but without being "loud". The exhaust will not "drone" at any speed or RPM and it has a nice, American-car sound.

But for the off-roader, Cool Tech has taken the extra step to re-locate the muffler to the mid-section of the JK. This location better protects the muffler while off-roading and also frees up a substantial amount of space under the rear tub of the JK for mounting air tanks, rear winchs, etc.

Cool Tech designed the kit for serious off-roading. The tail section remains high and out of the way, and the design is compatible with virtually any aftermarket bumper selection.

The Cool Tech cat-back (50-state legal) Kit is complete, and includes the following, high-quality components;

o Stainless Steel, Full Polished, double insulated performance muffler

o Custom aluminum heat shield with stainless-steel straps. It secures to the muffler and not to the JK eliminating drilling and avoiding vibrations and rattles.

o Custom tail-pipe section with welded hanger utilizing OEM rubber insulator and attach point. Located high with no under-bumper exit to accomodate all aftermarket bumpers while maximizing ground clearance.

o Stainless steel exhaust band clamps that are simply the best exhaust clamps you can buy.

o Finally, complete installation instructions. Installation can usually be done in less than 1-hour.

Here are some pictures of the exhaust system install on the Cool Tech JK unlimited.

http://www.cooltechllc.com/catalog/JKExhaust/FrontFacingView.JPG

http://www.cooltechllc.com/catalog/JKExhaust/MidSectionUnder.JPG

http://www.cooltechllc.com/catalog/JKExhaust/HeatShieldMuffler.JPG

http://www.cooltechllc.com/catalog/JKExhaust/TailPipeUnderSide.JPG

The Cool Tech JK exhaust Kit is available at an introductory price of $299 and can be ordered directly from Cool Tech, LLC at this link

http://www.cooltechllc.com/servlet/Detail?no=15

[Robar]

Can you host a sound bite of some sort? Would like to hear it.

[MJS_Jeep_888]

Can you host a sound bite of some sort? Would like to hear it.

Likewise - sound is my primary consideration when deciding who to go with...

[nota4re]

Hey guys,

I'm not the biggest believer in sound clips for exhaust as the combination of recording and playback device limitations is simply not that representative of real life. But since none of you are likely next door, here's some appropriately named files to try to help. (Let's see how long my isp will be OK with the download bandwidth!)

http://pages.sbcglobal.net/kpond/CoolTechJK/Exhaust/

[MJS_Jeep_888]

Hey guys,

I'm not the biggest believer in sound clips for exhaust as the combination of recording and playback device limitations is simply not that representative of real life. But since none of you are likely next door, here's some appropriately named files to try to help. (Let's see how long my isp will be OK with the download bandwidth!)

http://pages.sbcglobal.net/kpond/CoolTechJK/Exhaust/

I agree that the recording device, audio compression, etc., can "sap" the sound or sometime even be downright misleading, but I've gotta give that sound a BIG thumbs up :thumbs: That's exactly the kind of deep, resonant hum that I want...

So clarify something for me, please: Does the Cool Tech catback system include all that I see in the photos you posted (specifically, that Magnaflow muffler)? If so, I think I've got some begging, er, um, I mean "convincing" to do with the wife... again, that's a GREAT sound IMO.

[low4life]

Sounds good to me. Once again another top quality Cooltech product:yup:

[MJS_Jeep_888]

Well, you got me interested enough that I checked out the CoolTech website you linked to, but unfortunately for me, it looks like you're only offering for the 4-door models... bummer!

[low4life]

Well, you got me interested enough that I checked out the CoolTech website you linked to, but unfortunately for me, it looks like you're only offering for the 4-door models... bummer!

Say it's not so....Cooltech are you planning on a 2 door kit in the near future?:yup:

[nota4re]

Sorry for the cross-post, but I wanted to make sure you had this answer...

My local Jeep dealer has (2) 2-door Rubi's in stock - and one of them was parked on their grass. I spent some time underneath it and it looked pretty familiar - but a lot shorter (doh!)

I'm sorry to say but the Cool Tech cat-back just doesn't stand a chance under a 2-door. The trouble is that the muffler and the evap cannister would have to be side by side, and there's just not enough room for that.

I'm bummed too, I really don't want to discriminate against any JK owners.... but this won't be an easy one.

[ccdjeep]

is that a magnaflow muffler I see?

[Area-51]

I like. Might have to make this mod happen a liitle sooner than I expected to....

[Milkman]

I'm just about ready to jump in. Just a couple questions....

Any chance we could get a copy of the instructions?

Do you have to cut off the old exhaust and then clamp on the new exhaust or is it a simple unclamp old, reclamp new type deal?

[nader]

It looks like you have to modify the factory exhaust. Notice all the darker colored sections of pipe? Those are the factory pipes. My impression is that the kit includes a muffler, heat shild and a short tail section plus clamps.

is it possible to use a longer muffler? What length Magnaflow are you using?

I would be willing to dyno it (A/F numbers included). One of my customers owns a dyno shop and has been kind enough to let me use it.

[nader]

After looking at the underside pic, is there any way to easily relocate the charcoal canister behind the rear where the stock muffler was? That way 2 door JK's could use this part.

[chvynova]

Sorry for the cross-post, but I wanted to make sure you had this answer...

My local Jeep dealer has (2) 2-door Rubi's in stock - and one of them was parked on their grass. I spent some time underneath it and it looked pretty familiar - but a lot shorter (doh!)

I'm sorry to say but the Cool Tech cat-back just doesn't stand a chance under a 2-door. The trouble is that the muffler and the evap cannister would have to be side by side, and there's just not enough room for that.

I'm bummed too, I really don't want to discriminate against any JK owners.... but this won't be an easy one.

Is it possible to make a kit for the 2 dr. by coming off of the existing pipe (where your tail pipe comes off of) with a 90* bend into the magnaflo (half the size of the factory) and then a 90* coming out for the tail pipe. I would think the hardest part would be using the factory hangers. I know it would not relocate the muffler but it's better than replacing the factory system that's already stainless with. You could also offer it with out a muffler for someone to use one of their choice by leaving the straight pieces that go in and out a little longer for shorter mufflers.

[nader]

how about just leaving the rear section off? It is already kind of a turn down after the axle.

Colltech, Howabout a muffler and heatshild kit? Also listening to the exhasut clip, I think a larger muffler is necessary. Doesnt sound to hot IMO. Not refined enough.

[nota4re]

how about just leaving the rear section off? It is already kind of a turn down after the axle.

Colltech, Howabout a muffler and heatshild kit? Also listening to the exhasut clip, I think a larger muffler is necessary. Doesnt sound to hot IMO. Not refined enough.

Well, that' the trouble with internet sound-clips/videos. It's hard to put things in perspective. I too think the exhaust sounds much louder on the video than it does in person. By comparison, watch the clip where the Rubi starts and revs.... just listen to how loud the starter is in that video (and my starter is normal). A larger muffler is even possible, but I don't think it is needed. I honestly believe that the criticism of this system will come from those who expected/wanted something louder.

As for leaving the turn down at approximately the axle, I don't think that would be real safe from an exhaust gas gettng into the car perspective.

Hopefully a few of you will be at Moab next week and you'll have a chance to hear it in person.

[fraynes1]

Noobie question here and not so mechanically inclined:D

Just to clarify, If I buy the Cat Back kit, I just disconnect from the Catalytic(sp?) converter remove the stock exhaust from Cat Back and reinstall your kit? :thinking:

It's that easy or is there more fabs that need to be done?

[nota4re]

Noobie question here and not so mechanically inclined

Just to clarify, If I buy the Cat Back kit, I just disconnect from the Catalytic(sp?) converter remove the stock exhaust from Cat Back and reinstall your kit?

It's that easy or is there more fabs that need to be done?

Essentially, this is the install process:

1. Unclamp and then remove the stock muffler.
2. Unclamp the mid-section pipe (~ under the driver's seat).
3. Work the mid-section pipe out from the JK from the rear.
4. Measure and make two marks on the mid-section pipe.
5. Using a hacksaw, sawzall, or cutting wheel, cut the midsection pipe.
6. Re-install piece with original clamp under driver's seat.
7. Install muffler and clamp with supplied stainless steel clamp.
8. Re-install remaining over-the-axle midsection. Clamp to muffler.
9. Place supplied tailpipe on factory hanger and clamp to mid-section pipe
10. Install heat shield using supplies stainless steel hardware

Note: All factory hangers are utilized and the resulting systems is a "solid" as the OEM unit.

It's really pretty easy - perhaps mostly because our Jeep are so new and everything comes apart pretty easy.

Note/admission: Perhaps the "cheesey" part of the Cool Tech system is the requirement to make two cuts on the mid-section pipe where other after-market kits are straight bolt-in (although they DO NOT relocate the muffler). Arguably, a new mid-pipe should be part of the "kit". But, these are brand new vehicles and the OEM mid-pipe is a nice, large, 2.5", mandrel bent pipe. Why throw it away? If I make one (I could), at best it will be as good as the factory pipe. The kit price will go up and it would likely have to be split in two with another clamp to make shipping practical (it's a long pipe!)

Best regards.

[smack2020]

I had the flowmaster 3 champer muffler installed and I like the sound. Sounds like what the old Jeeps sound like. I am happy with the Flowmaster.

[JC_]

Will this kit be offered with a SS pipe in the near future?

[Piginajeep]

I cleaned this thread up..

If you dont like his product, Dont buy it and Dont post. If you want to discuss this further use the off-topic forum or the tech forums.

He pays to be a sponsor of our site, without him and our other sponsors we could not exist.

If you have questions that pertain to his product feel free to ask away.

thanks for your cooperation..

[JC_]

Will this kit be offered with a SS pipe in the near future?

incase this was missed, I am looking to buy...

[ksroqclimber]

Hey nota...

I just want to clarify some things as this seems like a very possible option for me. I really enjoy doing things myself, and exhaust was something i was pretty sure i would have to take in due to the welding.

from your install description, the only thing that would have to be modified is slicing the pipe down to size. But no welding needed? correct?

Second question, WHat kind of muffler is included in the package? somone mentioned Magnaflow earlier, but i couldn't really tell. size as well would be nice info.

thanks
Billy

[nota4re]

Yes it is a Magnaflow - fully polished stainless. As hopefully you can see from the pictures, it's length is small enough to fit between the two cross-frame support rails. There's no welding. The kit includes the best clamps in the business - fully stainless, Grade 8 hardware band clamps (much better than the ol' U-bolt we always used to use.)

[JC_]

Should I take the lack of a reply as a no?

[nota4re]

JC, sorry. I'm on the road to Moab... not checking as thoroughly. I didn't have any plans for a stainless tail section. While stainless may out-last the aluminized steel, I think the lifespan of the later will be quite long. Is this the main reason you were looking for stainless?

[JC_]

Thanks for the reply!

Yes, rust is the primary reason for the Stainless Steel request. Salt and other chemicals are very common on our roads in the wintertime and these chemicals love to eat exhausts.

I suspect others that live in the rust belt would like a SS option as well.

[Rubidon]

Look's pretty sweet! How long will the intro price be $299.00? I think I need to get this............Just need to convince the better half that I need to get this.:rotflmao1:

[histrung]

Quick question... I see you mention the new muffler is stainless, is the new tailpipe section stainless steel as well?

[seadoo3]

Ordered the Cool Tech kit on Friday via the internet and it was at my door on Tuesday. Read and re-read the instructions. Sounded & looked to easy. Step by step took my time and it came out just like the pictures and as easy to install. Looks and sounds great. Great kit. Sounds even better.
Even though the brackets are great I still had it welded up. Old school I guess. I did notice in your pictures you trimmed the straps around the muffler/Magnaflow after you installed. Probably eliminates the ringing I hear. Tomorrow's little project.
The exhaust kit combined with the AIRAID intake make a noticeable difference. No numbers except you can tell when you hit the pedal. To me, better airflow in and out makes for better performance. Getting on the freeway, passing someone, and just wanting to hear the exhaust sound is fantastic.

Looking at next project.

[BJeepJK]

How long is this going to be at that price? This is on my mod list and that is a good price. 3 weeks and 2 days until my bonus check, not that i'm keeping track or anything.
AR atx's and some new rubber and my list will be complete ... until the next list ... lol. It never ends right?

[07 RBY]

Have you made up your mind yet as to whether you can fab up something for us 2 door guys?

[Zylfrax791]

From the picture of the install looking straight at the bottom the outlet pipe looks real close to the cannister. Any plans to switch from the central outlet muffler to one that has an outlet on the same side as the inlet?

[pigeonfarmboy]

Ordered late Thursday night got it today (Sat.) Thanks Cooltech!!

[-=Gar=-]

Nice to know someone has made a kit that relocates the stock muffler. I always thought that was a poor place to have it. Now it would be cool if there was an after market fab kit that turned that space into a storage area of some sort.

[pigeonfarmboy]

Just like this ;) http://www.jk-forum.com/showthread.php?t=10869

Got my Cooltech exhaust kit installed today. Sounds great and I can really feel a difference in performance!

[-=Gar=-]

Yep, just like that! Thanks. :D

[SpudRacer]

I also want to pull the trigger on this kit as it is just what I've been looking for. But again, I ask the same question others have asked, how about a stainless steel option for the tailpipe section? They put salt on the roads here as well, and I've Sawsalled off too many exhaust pipes to replace them over and over because of rusty holes. I agree that Aluminumized Steel is wonderful (for the California crowd) but we who live in harsher environments where salt is used frequently on the roads want/need stainless steel to protect our investment. The extra price of stainless is worth it and cheaper than replacing the pipe in 3-5 years.

I hope the Sponsor replies to this post, I want to order, but do not want to go through the hassle of taking the tailpipe section to a muffler shop to get a stainless copy made. How about it?!?! Can we get a stainless so I can order?

Tom
Bryson City, NC

[seer1]

Put mine on today. It wasn't bad, but it was going slowly until a friend came by to help out. Then it went real fast.

Took it out for a test drive (sound check) and man-oh-man! If you want to know the sound, go grab one of those old WWII movies with Jeeps in it. CoolTech captured the sound exactly. Then it disappears at cruising speed. Excellent!

As I drove it, I swear I could feel a difference in acceleration, but I'm curious as to whether I've fallen victim to the hype. Has ANY third party actually dyno'd it yet? Quite a few folks said they were going to.

BTW, even if it shows less horsepower, I ain't taking it off. It sounds just like a jeep should!:2thumbs:

[JC_]

Any more thoughts on a full SS option? :D

[SpudRacer]

It would appear that Cool-Tech has a deaf ear to our pleas. If so, I'll just have to order the muffler myself, splice it in myself, and have an exhaust shop fabricate a SS tailpipe myself.

But I'm sure there's a reason they haven't replied yet. Hey WOF, can you find out if they are checking this forum?

Many thanks,

Tom
Bryson City, NC

[nota4re]

SpudRacer & Others,

I am VERY sorry for the delayed response. I got int building a car in a very short amount of time. It has consumed ALL of my time during the last 3 weeks. I will immediately look into creating a SS tailpipe version of the kit. I'll have more news posted here very shortly. Just before starting this other time consuming car project, I had fabricated a jig to make the tailpipes more consistently. I just need to get a supplier for the stainless and to make the core bends before I jig it for the cut-off and the hanger attachment.

[SpudRacer]

First, I believe I speak for us all when I say a hearty thanks for responding. My wife already purchased one of your kits for my JK for my birthday, and I plan to slip it on today as soon as my two year old falls asleep for her afternoon nap.
I expect there are several of us who would like to purchase just the stainless steel tailpipe section as it's too late to wait for a stainless kit for me. I would also be eager to pay for a stainless 2-piece midsection pipe as well from the cat back to the tailpipe section.

Anyone else agree?

Tom
Bryson City, NC

[Area-51]

I would like an all stainless version from the muffler back.

[SpudRacer]

Got my kit on yesterday. The instructions were easy to read and understand (the COLOR photos are a NICE TOUCH!!). The old exhaust came apart easy enough (3500 miles), but I struggled with getting the midsection pipe off the hanger in the front because the exhaust was hitting the (I hope I remember correctly) transfer case, so I eventually gave up before I damaged anything and decided to just cut the tube without removing it from the JK. That seemed to go easier. I recommend sanding the edges of the tubing after you cut it to prevent cuts on your hands (no, I didn't cut my hands but have in the past), and to help slide it together easier.

It all went together well, but I don't like the way the rear tailpipe is positioned under the bumper. It's not too close to the plastic bumper, and not too close to the trailer wiring, but it just looks cocked and doesn't look right. The only way I could make it look right was to rotate the midsection pipe clockwise (looking from the rear) which would decrease the clearance between the axle tube and the exhaust during full deflection of the suspension, so I just left it crooked. I'll be driving to Asheville, NC today. While there, I'll stop at some exhaust shops and see if I can find one with stainless tubing so I can get a new tailpipe section bent so it looks better.

As for sound, I like it. I fired it up with the old exhaust off BEFORE I installed the new kit, and it wasn't as nearly loud as I expected. Now it is as everyone said, it has a louder tone with a soft drone at idle and low speeds, and sound more like a Jeep should, and above idle it can hardly be heard if the radio is on. Will be taking it out ion the highway today to see how it sounds at speed. I will post if there is a difference in mileage as time/miles flow by.

Overall, I like the kit and rate it 8 out of 10, but feel the tailpipe section could be bent better, and THERE NEEDS TO BE A STAINLESS OPTION for those who live in northern or mountainous regions. I also beg that those of us who already purchased our kits should be able to buy a discounted Stainless tailpipe section since we already bought the nonstainless version.

Tom
Bryson City, NC

[bly109]

I struggled with getting the midsection pipe off the hanger in the front because the exhaust was hitting the (I hope I remember correctly) transfer case, so I eventually gave up before I damaged anything and decided to just cut the tube without removing it from the JK. That seemed to go easier. I recommend sanding the edges of the tubing after you cut it to prevent cuts on your hands (no, I didn't cut my hands but have in the past), and to help slide it together easier.

It all went together well, but I don't like the way the rear tailpipe is positioned under the bumper. It's not too close to the plastic bumper, and not too close to the trailer wiring, but it just looks cocked and doesn't look right. The only way I could make it look right was to rotate the midsection pipe clockwise (looking from the rear) which would decrease the clearance between the axle tube and the exhaust during full deflection of the suspension, so I just left it crooked. I'll be driving to Asheville, NC today. While there, I'll stop at some exhaust shops and see if I can find one with stainless tubing so I can get a new tailpipe section bent so it looks better.

As for sound, I like it. I fired it up with the old exhaust off BEFORE I installed the new kit, and it wasn't as nearly loud as I expected. Now it is as everyone said, it has a louder tone with a soft drone at idle and low speeds, and sound more like a Jeep should, and above idle t can hardly be heard if the radio is on. Will be taking it out ion the highway today to see how it sounds at speed. I will post if there is a difference in mileage as time/miles flow by.

Overall, I like the kit and rate it 8 out of 10, but feel the tailpipe section could be bent better, and THERE NEEDS TO BE A STAINLESS OPTION for those who live in northern or mountainous regions. I also beg that those of us who already purchased our kits should be able to buy a discounted Stainless tailpipe section since we already bought the nonstainless version.

Tom
Bryson City, NC

I did the same thing, I cut the midpipe to length while it was still under the vehicle. Much easier and saved time. I also had trouble with the tailpipe being crooked. I let it that way too, because of the axle clearance. I'm glad I wasnt the only one who had this problem! I live in Pa and I would also like a SS tailpipe option. Winter road salt just eats metal up here. I did prep and paint my tailpipe with DEI's silicone exhaust coating. I have used that in the past on Non SS exhaust pipes and it does make it last a little longer.

Overall, I love the exhaust. Sounds and works great.

[SpudRacer]

OK, new update after driving around for 170 miles so I could collect more data:
I notice a tad more power on the highway, and this seems confirmed while trying to climb my usual grades with the cruise set. Before, with the cruise set to 62mph, I would crest the mountain at 54mph. Now with an Airaid CAI and the Cool-Tech exhaust, I crest the same mountain at 58mph, and this is during midafternoon sweltering heat, a BIG difference from the usual 60-70s in the past when I collected the initial data.

On a downside, there is a second hill that I could idle up at 1000rpm in third gear before the Cool-Tech exhaust, now I seem to struggle up the hill and my speed slowly scrubs off, but I can still make it to the top before I absolutely HAVE to downshift to second, so for those who reported a decrease in low-end torque, I must agree. It seems the Cool-Tech exhaust boosts higher rpm power, yet at a small sacrifice to low end torque.

As for the sound, I can still hear it while on the highway, it is noticable, yet not nearly annoying. My XJ was MUCH louder with a Flowmaster on the 4.0, this JK exhaust seems more docile and reserved in it's sound. When you stomp on it and let the rpms rev to the sky, it is sweet music to my ears. I can hear both the roar from the Airaid, AND the bellow from the exhaust. If you turn your head sideways, it's almost like hearing it in stereo!

I checked my MPG as I pulled back into town, and was please to have recorded the highest to date after my 10th tank. I hit 17.4mpg which breaks the old record of 17.2mpg. Several of the miles on that tank were towing a boat too, so if I could log all highway miles, I suspect I could top 20mpg, but 75% of my driving is usually city miles (actually "small town"), and in the mountains to boot where you struggle up one hill, then coast down the backside, hill/mountain after hill/mountain.

In summary, I do not mind the low end drop off too much, but I fear it may be much more noticeable with the boat behind the Jeep, I'll find out tomorrow. I hope the upper-end power helps pull the boat up the steeper mountain grades.

The next step in the cure for power will be the chip. I'm oscillating between the stage one and the stage two chips, I usually use midgrade 89 octane fuel, and hate to be forced to use Premium only, but if the power difference is that much greater with the stage two chip, I may go that route. Any input on a NOTICEABLE difference between the two?

Tom
Bryson City, NC

[nota4re]

SpudRacer & bly109,

Thanks so much for all of your honest and straightforward feedback.

I recently made a jig that allows me to cut the tailpipe on a bandsaw and I think the cut is more consistent. The newer kits all have this - yours may not.

I would like to send each of you a new SS tailpipe (with the new cut). Please PM me your address and I will ship these out before the end of the week.

I will have a kit with the new SS tailpipe announced by the end of the week too.

Again, I thank you for purchasing my products and I do appreciate the feedback.

[Angryitch]

I just purchased and installed your exhaust kit today! I too noticed the crookedness of the tailpipe section and could not come up with a satisfactory angle to straighten it. Love the sound and compactness of the Magnaflow. Didn't realize just how heavy the stock muffler is.

Do I get a new tailpipe section too?

[ksroqclimber]

I will have a kit with the new SS tailpipe announced by the end of the week too.


Very Nice!

I have been waiting and will probably buy this package now that i can get it in SS.

[bly109]

SpudRacer & bly109,

Thanks so much for all of your honest and straightforward feedback.

I recently made a jig that allows me to cut the tailpipe on a bandsaw and I think the cut is more consistent. The newer kits all have this - yours may not.

I would like to send each of you a new SS tailpipe (with the new cut). Please PM me your address and I will ship these out before the end of the week.

I will have a kit with the new SS tailpipe announced by the end of the week too.

Again, I thank you for purchasing my products and I do appreciate the feedback.

Thanks! Definitely a quality resolution. :2thumbs:

[levi550]

I too would like a SST option.......I purchased the system ~ 6 weeks ago, have it installed, seems to be "cock-eyed" in relation to the bumper, I can not "twist" it enough to level it out without reducing the clearance over rear axle. There is also the heat issue with the bumper. Anyhow, I would be very interested in the new solution.

Give me a message please.

Please let it be known, I am a happy customer, no bitch here.

Delivery addy of 12803.

:)

[SpudRacer]

I received my stainless tailpipe section yesterday and installed it this am. The solution to the crooked appearance appears to be cutting off the bezeled end so it is cut off square. Though it is a tad shorter, it no longer appears cocked and I like it better. Many thanks for listening to the requests for stainless steel.

Tom
Bryson City, NC

[bly109]

I received my stainless tailpipe section yesterday and installed it this am. The solution to the crooked appearance appears to be cutting off the bezeled end so it is cut off square. Though it is a tad shorter, it no longer appears cocked and I like it better. Many thanks for listening to the requests for stainless steel.

Tom
Bryson City, NC

I just installed mine too, looks alot better. Thanks Cooltech for fixing this problem quickly and very painlessly!! The stainless was a nice touch as well! I know I won't hesitate to buy from you again:yup: :2thumbs:

[levi550]

I just installed mine too, looks alot better. Thanks Cooltech for fixing this problem quickly and very painlessly!! The stainless was a nice touch as well! I know I won't hesitate to buy from you again:yup: :2thumbs:

Must throw my x2 on this also....got my new sst replacement, put it on, quality item.

Great customer service.......will buy from Cooltech with no concerns in future. :yup:

Thanks,

Levi550

[ksroqclimber]

anyone want to post some pics of the SS version?

B

[USAF_GroundRat]

anyone want to post some pics of the SS version?

B

YUP!!! :D :D

[I&I]

I had my heart set on the Gibson dual exhaust due to the way it looks, but after reading other posts, it doesn't sound (too loud!) like I would be happy with it. I don't like the way the dual Borla looks either with the square ends so far apart. It might be too loud also. The main reason I want to replace the exhaust is how funny the stock muffler looks with all its multi-color glory. If it were all one color it would be fine, but it's not. I don't assume there is anything I could paint it or cover it with, so the Cool Tech system looks like the best answer for me.

I listened to the sound clips provided by Cool Tech (Thanks!) and it seems pretty loud also. I have 5.13 gears with an automatic and on the highway the Jeep turns higher RPMs, so I am afraid there will be a drone while driving at higher speeds. I would go ahead and try it out if it weren't for the cutting involved. I assume there is no going back to stock after that. Can anyone elaborate on the sound on the highway at higher RPM? Are any of you guys with the Cool Tech in L.A. area going to Off Road Evolution's Meet and Greet this Saturday? I'd love to hear this thing for myself before I buy it.

Lastly, Nota4re sounds like he is really interested in pleasing his customers. Unlike some other sponsors around here...FULL...cough...TRACTION...cough... I love to buy from people and companies like Cool Tech, as this is how I run my business. It leads to long term success and "bread and butter" customers. With a country that is awash in cash, they are few and far between nowadays.

[SpudRacer]

I'll be happy to field this one...

The sound on the highway is much ore affected by the load on the engine than it is by the RPMs.

I can climb up a mountain pass at 3500-4000rpm, and the engine has a soft to moderate roar to it that is music to my ears, and I find myself looking at my wife to see if it is annoying her, but she doesn't seem to mind. You can come down the descent at the exact same rpm with your foot off the throttle and hear almost nothing but the wind on the soft top. If you are cruising on the highway with no load on the engine, it'll sound rather tame, but if you stomp on the gas, before the rpms even start to climb, you'll hear a major difference in the tone/drone.

Hope that helps.

Tom
Bryson City, NC

[scottcarp]

I ordered the kit Tuesday (regular shipping), and got this email on Wednesday:


Your order for the JK Exhaust Kit (4-door only) shipped today via DHL
tracking # xxxxxx Two Day shipping (I shipped two day so you could
have for the weekend)

Thank you for your order.

Cindy
Cool Tech, LLC

I realize this cost them less than $10 to upgrade the shipping, but it's a nice added touch.

[SpudRacer]

Update...

The Cooltech exhaust is still looking and sounding terrific after 1000 miles. My latest tank of gas (with Cooltech Exhaust and AiRaid CAI) at the pump got 18.6mpg, this was mountain driving which was about 50% highway and 50% city miles. This was by far the best mileage I've ever gotten by over 1 mpg.

Thanks CoolTech.

So when will I be able to buy a BLANK switch plate for the center console?!

Tom
Bryson City, NC

[scottcarp]

Update...

The Cooltech exhaust is still looking and sounding terrific after 1000 miles. My latest tank of gas (with Cooltech Exhaust and AiRaid CAI) at the pump got 18.6mpg, this was mountain driving which was about 50% highway and 50% city miles. This was by far the best mileage I've ever gotten by over 1 mpg.

Tom
Bryson City, NC

That's great to hear. You probably mentioned this earlier, but did you install them at the same time?
I'm going to run the muffler for a couple hundred miles, then add AirRaid or PureJeep CAI so I can see the difference of each.

[seer1]

Still waiting for my tailpipe. That thing sure makes the Rock Hard bumper rattle.:yup:

[scootrrydr]

Just ordered my cooltech exhaust system today!:D Really don't know why I waited so long....My CAI is just sitting in my garage waiting for install! Let you guys know how it goes...and hopefully getting mine in a two day mode also!;)

[scottcarp]

'hope I don't get Cindy in trouble!

[scootrrydr]

I ordered the kit Tuesday (regular shipping), and got this email on Wednesday:


Your order for the JK Exhaust Kit (4-door only) shipped today via DHL
tracking # xxxxxx Two Day shipping (I shipped two day so you could
have for the weekend)

Thank you for your order.

Cindy
Cool Tech, LLC

I realize this cost them less than $10 to upgrade the shipping, but it's a nice added touch.

Well its after the weekend. Did you get it installed? How does it run? Pic?

[scottcarp]

Didn't have time over weekend, so I had a buddy do it today. It sounds great around town. I think it was this thread where someone referred to the sound of WWII jeeps - he nailed it. It's nice and throaty, but not high pitched.
I haven't taken it on the highway yet.
I did some "before" videos last week. If the "after" ones sound different enough, I'll post them. I'll post pics after the site is back up.

Edit: Here's some pix: http://picasaweb.google.com/s589349/CooltechMufflerRelocation

[drbeddow]

I just installed mine and I love it. Nice rich sound, not too loud. Pretty simple kit to install and appears to be very high quality. Now if they would leave me some positive feedback on "that auction site" everything would be perfect. LMAO

[mrsig]

I have had it on for about 4000 miles and I love it!! I could not go into deep water before the jeep would stall and now no problems at all plus it is great on the rocks too. I have pick up about 1.2 mpg with it....
http://www.aaof.us/images/bi910.jpg
http://www.aaof.us/images/bi92.jpg

[scootrrydr]

Finally installed the Cool Tech exhaust. Whew, what a PITA to get those rubber hangers off! If it wasn't for those, it would be a half hour job! If you want my advise, leave the front hanger on. The closest one to the front. Measure from there and use a Sawsall with a metal blade to cut the pipe. Simple to do. Way faster then the instructions. Plenty of room to cut with it on the vehicle. And the very last hanger, leave that one on too, closest to the tailpipe, cut that SOB with a sawsall with a wood blade. Instead of removing it by hand. After those tips you can really install the whole system in under 1 hour. :yup: I'll post pics as soon as I am done installing the CAI.

[SpudRacer]

--------------------------------------------------------------------------------

Finally installed the Cool Tech exhaust. Whew, what a PITA to get those rubber hangers off! If it wasn't for those, it would be a half hour job! If you want my advise, leave the front hanger on. The closest one to the front. Measure from there and use a Sawsall with a metal blade to cut the pipe. Simple to do. Way faster then the instructions. Plenty of room to cut with it on the vehicle. And the very last hanger, leave that one on too, closest to the tailpipe, cut that SOB with a sawsall with a wood blade. Instead of removing it by hand. After those tips you can really install the whole system in under 1 hour. I'll post pics as soon as I am done installing the CAI.

Too bad you didn't read the prior posts where others including myself recommended leaving the front hanger on, the rest are easy to pull off with a little patience and strength!! The instructions need to be ammended (in my opinion) to instruct to leave the front hanger on and cut the tube while still installed on the vehicle.

Tom
Bryson City, NC

[bly109]

Too bad you didn't read the prior posts where others including myself recommended leaving the front hanger on, the rest are easy to pull off with a little patience and strength!! The instructions need to be ammended (in my opinion) to instruct to leave the front hanger on and cut the tube while still installed on the vehicle.

Tom
Bryson City, NC

I used spray wax on my hangers, it made it alot easier to pop them off.

[seer1]

What service from these folks! I received my free stainless upgraded tailpipe Thursday and put it on today. It's a perfect cut and hangs about an inch below my Rock Hard bumper. The rattle's finally gone!

These kind of people deserve my business so I ordered the bottom switch panel (it's going on tomorrow,) CB antenna quick disconnect and the hardtop bolts (also going on tomorrow.)

Can't wait to see what that mad genius comes up with next!:bounce green:

[scottcarp]

The image is small and crappy, but this clip is a great representation of how AWESOME my jeep sounds w/the Cooltech kit.

cooltech.mov (http://www.thecarpenters.us/cooltech.mov)

Also, for anyone who tried to price out the components to justify the $300 price tag, it works. The 3 large clamps alone are worth $15 each (according to my mechanic), and the custom tip is well designed and probably can't be found anywhere else.
If you do your own pipe bending, etc, you can probably save some $, but for us mere mortals, the kit is worth every penny.

[HUNTER]

I am considering the Cool Tech set up but.....Anyone drive doors off, carpet out yet? I got my JK at the end of summer but thats how I will be running it next year and wanted some input. My LJ could fry an egg next to tranny tunnel. And moving the muffler right under the seat has me wondering(. Its funny everyone who checks out my Jeep asks why is the muffler there(stock location)?
Thanks in advance

[seer1]

I am considering the Cool Tech set up but.....Anyone drive doors off, carpet out yet? I got my JK at the end of summer but thats how I will be running it next year and wanted some input. My LJ could fry an egg next to tranny tunnel. And moving the muffler right under the seat has me wondering(. Its funny everyone who checks out my Jeep asks why is the muffler there(stock location)?
Thanks in advance

If they look a little farther they can really get puzzled by the stupid location of the charcoal canister. If you're worried about heat, the stock muffler insulator will be available for extra heat shielding. I was going to do something with that, but found I didn't really need it.

[NDynamite]

Question for those who have installed their Cooltech exhaust without removing the midpipe from the vehicle - do you still need to jack up the driver's side to install? I don't have a floor jack or jackstands.

Thanks!

[SpudRacer]

No need my new friend,

Just hack away at the recommended lengths from the end of the pipe. I recommend using sandpaper to smooth the pipe edges after you cut, it'll make slipping the muffler on much easier.

Tom
Bryson City, NC

[NDynamite]

No need my new friend,

Just hack away at the recommended lengths from the end of the pipe. I recommend using sandpaper to smooth the pipe edges after you cut, it'll make slipping the muffler on much easier.

Tom
Bryson City, NC

Thanks, Spud! Looks like that will be my project for next weekend.

[brian_crystal]

I have a quick question for the vendor...with the new proliferation of evap canister relocation kits can your exhaust be made for the 2-doors? I am by no means an engineering master, heck I don't even have a garage...just a carport. But, it sounds like if the evap canister wasn't in the way, you could fab a 2-door kit. I don't know if "partnering" with one of the producers of the kit to sell both products as an all inclusive kit would be an option. But, again, I didn't major in business either, heck in the Army we suck at money management. I bring this up because I have an inkling that the guys on this forum who would be interested in a 2-door kit might also be looking into relocating their evap canisters. I don't know if you could "run" a poll or do something else to get an idea if interest would justify the investment on your part. Just something to think about. Oh, I am definately looking into your 4-door kit just as soon as Uncle Sam gives me back some of the free loan I gave him last year...taxes suck.

[WRAITHYJEEP]

just a thought!

i like this exhaust.
and i understand the reason of a relocation kit for the evap canister
and i appreciate the woods rear storage expansion unit
but
is there going to be a skid plate made for the cool tech muffler location though
i mean if every one is relocating the evap canister due to fear of ripping it off would the same fear not exist for get the muffler getting hooked on something and ripping it off or severely damaging it?

let me know thanx

[bly109]

just a thought!

i like this exhaust.
and i understand the reason of a relocation kit for the evap canister
and i appreciate the woods rear storage expansion unit
but
is there going to be a skid plate made for the cool tech muffler location though
i mean if every one is relocating the evap canister due to fear of ripping it off would the same fear not exist for get the muffler getting hooked on something and ripping it off or severely damaging it?

let me know thanx


The magneflow tucks up pretty nicely above the frame. I havent hit mine yet, and while Im sure it will take a hit eventually, Im not too worried about damage. It usually takes a pretty good hit to completely destroy a muffler. And then it would only cost me about 60 or 70 bucks to replace. The Evap canister is more fragile and expensive to replace if it gets damaged. Thats why I moved mine with the Woods kit.

[dnhenson]

I just purchased the JK exhaust and received it on friday. I put it in my jeep on Saturday . The teardown was very hard, but the buildup was very easy. The instructions were concise and it went back together very well. The sound is very mellow and not loud at all on the highway. Thanks cool tech for a very wonderful kit. Now someone just needs to make a kit to put a bigger trunk in the back where the old muffler went.

[Robar]

I just purchased the JK exhaust and received it on friday. I put it in my jeep on Saturday . The teardown was very hard, but the buildup was very easy. The instructions were concise and it went back together very well. The sound is very mellow and not loud at all on the highway. Thanks cool tech for a very wonderful kit. Now someone just needs to make a kit to put a bigger trunk in the back where the old muffler went.

Wait for the next basement builders market to open next month. Someone should have one. Just keep watching.

[ROKLIMO]

I just purchased the JK exhaust and received it on friday. I put it in my jeep on Saturday . The teardown was very hard, but the buildup was very easy. The instructions were concise and it went back together very well. The sound is very mellow and not loud at all on the highway. Thanks cool tech for a very wonderful kit. Now someone just needs to make a kit to put a bigger trunk in the back where the old muffler went.

Woods has a kit. (Same guy selling the Evap relocation kit) Check out the basement builders thread when it opens back up. His kit comes Line-X'd and looks pretty nice.

[seer1]

Woods has a kit. (Same guy selling the Evap relocation kit) Check out the basement builders thread when it opens back up. His kit comes Line-X'd and looks pretty nice.

Last I saw it was going for 300 bones. While my welding skills aren't great, three large for sheet metal seems kind of up there.

[ROKLIMO]

Last I saw it was going for 300 bones. While my welding skills aren't great, three large for sheet metal seems kind of up there.

If you got the skills and time, go for it. Should be a good option for those without either.:yup:

If you had to build them to sell, you would probably find that $300 isn't that much.

[AZJeeper]

I just purchased the JK exhaust and received it on friday. I put it in my jeep on Saturday . The teardown was very hard, but the buildup was very easy. The instructions were concise and it went back together very well. The sound is very mellow and not loud at all on the highway. Thanks cool tech for a very wonderful kit.

Just put my Cooltech exhaust on. Ordered on Wednesday, installed on Saturday! All the talk about the hangers made me hesitate. Actually went very easy - both tear down and build up. A little WD-40 and a lot of elbow grease got the old hangers off very quickly. Left the front hanger on and sawed off the pipe while it was on the Jeep. About 1 1/2 hours for the whole operation, including "refreshment" breaks. Sounds a little louder but not too bad. Seat of the pants says it has a little more low-end torque, but it could be just the sound making me think so. Frees up a ton of room in the back!

x2 on the wonderful kit!

[Zulu1]

Didn't see anywhere.

Does the kit come with SS pipes now?




added this kit to my mod list. I can't wait till spring..

[RedneckJeep]

Looks like a quality kit, I just have a couple of questions. First, is it possible to get a clip/sound bite from inside the modified vehicle? I would like to hear the interior noise level. Usually, wherever the muffler is located, you can pick up on a slight rumble, even from a stock muffler. So, by moving the muffler more under the passenger compartment, I am concerned about interior noise. Seems the factory designed the exhaust system to place the muffler far away from passengers. Your design puts the muffler directly under them. Secondly, this seems to be a huge departure from the original design. Seems the product has been out long enough to pick up on any problems from the modification. Have you encountered anything to date? Lastly, I would have to bring up the heat issue. The factory heat shield is pretty good. Since the area where you locate your muffler is not factory designed with a heat shield, or designed to take heat associated with a muffler, is it looking like the shield(s) that you include are doing the job? Being a mechanic/machinist/welder/fabricator since 1974, I look long and hard before I modify anything from it's original design. Often times, lots of mods look good on the surface, only to disappoint somehow later on. Not saying yours does, I just want to be sure before I get the saw out. Know what I mean?

[seer1]

Are you talking windows up, down; top up, down? You can't hear it with the windows up. The heat could be a slight issue in a warmer climate, but there is a stock heat shield in the back that you take off. I figured I'd use it if heat became an issue. He changed the tailpipe shape slightly and is now making it out of stainless. I dinged it a bit on my last run (4+ trail) but no big deal. I'm very satisfied with mine and would buy it again.

I do like the sound as well.:yup:

[RedneckJeep]

"Interior" noise level can only be accurately measured with the top in place and windows closed, thus the term "interior". Nice avatar.

[seer1]

"Interior" noise level can only be accurately measured with the top in place and windows closed, thus the term "interior". Nice avatar.

Come summertime, my interior is the great outdoors. :driving: It's still not very loud then. It more drops the tone than makes it all that much louder.

[AZJeeper]

Looks like a quality kit, I just have a couple of questions. First, is it possible to get a clip/sound bite from inside the modified vehicle? I would like to hear the interior noise level. Usually, wherever the muffler is located, you can pick up on a slight rumble, even from a stock muffler. So, by moving the muffler more under the passenger compartment, I am concerned about interior noise. Seems the factory designed the exhaust system to place the muffler far away from passengers. Your design puts the muffler directly under them.

Speaking from my experience, it is a very high quality kit. However, there is much more than just a "slight rumble". With the hardtop on and the windows closed, it's not much different than the stock. However, open the windows and you'll really notice the difference. Tow a trailer (as I do) and you'll REALLY notice the difference. I'm thinking on putting an elbow at the back to deflect the sound from bouncing off of the trailer because it is, in fact, LOUD.

Since the area where you locate your muffler is not factory designed with a heat shield, or designed to take heat associated with a muffler, is it looking like the shield(s) that you include are doing the job? Being a mechanic/machinist/welder/fabricator since 1974, I look long and hard before I modify anything from it's original design. Often times, lots of mods look good on the surface, only to disappoint somehow later on. Not saying yours does, I just want to be sure before I get the saw out. Know what I mean?

I have been constantly monitoring the heat issue and am glad to report I find no difference now that it is relocated under the driver's seat. The included heat shield really does its job well!

Being a mechanic/machinist/welder/fabricator since 1974, I look long and hard before I modify anything from it's original design. Often times, lots of mods look good on the surface, only to disappoint somehow later on. Not saying yours does, I just want to be sure before I get the saw out. Know what I mean?

I'd say get all the feedback you can before you get the saw warmed up. I like the system - super easy to install. However, the noise issue is a bit troublesome. So much so I'm thinking about searching for a quieter muffler to replace the Magnaflow. If the elbow doesn't help, I'll be searching.

[RedneckJeep]

Thanks, AZ! Yours is exactly the type of feedback I was looking for. :D

[seer1]

Thanks, AZ! Yours is exactly the type of feedback I was looking for. :D

Why didn't you just say you wanted someone to tell you it was too loud at the beginning of your question?:crazyeyes:

[RedneckJeep]

Why didn't you just say you wanted someone to tell you it was too loud at the beginning of your question?:crazyeyes:


I didn't say it, because that's not what I wanted. The difference between your answer and AZ's is staggering in the amount of detail. THAT'S what I was asking for. :bleh:

[crossbones]

Does anyone have a pic of the NEW Exhaust tip, is it not the same as the picture?

[RedneckJeep]

Does anyone have a pic of the NEW Exhaust tip, is it not the same as the picture?


Well, I sure won't be any help. I think most exhaust tips are cheesy and stupid looking. Not to mention they are a BIG target for the crush monster.

[crossbones]

Got My Cooltech KIT ..... Sounds Very Good not Ricer. I like the new location, and the install was straight forward... good kit I recommend!:yup:

Heres a PIC of the NEW tailpipe from Cooltech,

http://my.project-jk.com/data/500/medium/IMGP7871.jpg