Muffler suggestions???
JeepSWAG
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Joined: Dec 2006
Posts: 2,824
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From: Costa Mesa, Ca.
The muffler that I'm now using is quieter and deeper than either the Magnaflow and Borla. The muffler that is sold with my kit, will not work with relocating in front of the rear axle, but would work in the stock location. I can sell them for $60 plus shipping
I'm thinking about selling a same-side offest muffler, but I don't know what the demand is. These would work in front of the axle. If you have interest, send me a PM or email.
JK Enthusiast
Joined: May 2007
Posts: 137
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From: Bitterroot Valley, MT
I would think that a same-side offset muffler would still need a pipe to replace the section lost when removing the stock muffler. (although I ran with a 4" extension for months :-) Might be good for someone doing a DIY exhaust on the cheap.
JK Enthusiast
Joined: May 2007
Posts: 137
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From: Bitterroot Valley, MT
Makes great usable storage out of the space freed up by relocating the muffler.
Also the muffler is more protected, but that's a secondary consideration for me.
JK Super Freak
Joined: May 2008
Posts: 1,279
Likes: 0
From: Grand Junction, CO
The muffler that I'm now using is quieter and deeper than either the Magnaflow and Borla. The muffler that is sold with my kit, will not work with relocating in front of the rear axle, but would work in the stock location. I can sell them for $60 plus shipping
I'm thinking about selling a same-side offest muffler, but I don't know what the demand is. These would work in front of the axle. If you have interest, send me a PM or email.
I'm thinking about selling a same-side offest muffler, but I don't know what the demand is. These would work in front of the axle. If you have interest, send me a PM or email.
I would be interestedin a muffler that mounted in front of thr axle.
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MBRP Representative
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Joined: Sep 2008
Posts: 1,227
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From: Huntsville Ontario
Hello!
That is excellent news! Where did you purchase this system? I have not heard of anyone adapting or 4 door system for the two door. Could you elaborate on what was involved? Was it a matter of shortening the mid pipe section? We have been waiting to get our hands on a two door but this is good to hear.
Let me know what the process involved. Thanks!
JK Enthusiast
Joined: Feb 2008
Posts: 115
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From: Granada Hills, CA
I've thought about this, but am not sure that doubling the space would be worth it. I don't really have all that much to carry around (maybe I'd carry more if I had the space for it). I've only half filled the stock "trunk" as it is.
JK Super Freak
Joined: May 2008
Posts: 1,279
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From: Grand Junction, CO
I'm a wholesale exhaust distributor & have been in the exhaust business over 14 years and my father had a muffler shop for over 20 so I do have a little experience when it comes to product hype and what works. I have used both Magnaflow and Flowmaster on vehicles and I sell both products. The fact is Magnaflows just do not hold up as well over the long haul. I have had to warranty Magnaflows that were less than a year old(they get stress cracks at the joint of the nipple/body. They also have a tendency to rust out and crack in the body on the bottom as the packing they use soaks up condensation and if the muffler sits so far back like on a JK they don't dry out as fast(we have taken back Magnaflows and you could cut them open and water would dump out. Flowmaster also has a good hype machine working--all the manufacturers do. If you don't want that ricer sound use a 5x8 or bigger body muffler. Personal preference will rule your decision. One thing I can say is stay away from those cheap chinese knock offs of Flowmaster and Magnaflow-they are absolute garbage. I used a Hushpower on my TJ & Patriot and I use a Super 40 on my JK and love the sound and performance.
Which do you recommend. I might like to move the muffler forward in front of the rear axle. Would that change your recommendation.
Holy Cow! I just clicked on mufflers on their site flowmastermufflers.com/mufflers.html and came up with more information. I am really interested in not increasing the sound level inside the vehicle if possible (when on the road with the windows up). Looking at that it looks like the 50 Delta could be a good choice BUT you have actual experience and that is more valuable than any chart. Especially with the JK with it's little V6.
Last edited by wayoflifette; Jan 7, 2009 at 10:35 PM. Reason: edited clickable links
JK Newbie
Joined: Nov 2008
Posts: 26
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From: Auburn,WA
Chuck I used an offset inlet/center outlet #952446 and it does not sound ricer at all--it has a nice basey tone to it--I get tons of compliments from folks who hear it. I suppose you could move it up before the axle--the shop just might or might not have to tilt it to one side depending on how close it gets to the driveline. If you don't want increased sound level then step up to the 50 Series SUV line--5"x10" case size not the regular 50 Series 4"x9". I personally went with a 2 1/4" version only because the tip I used was a stainless 2 1/4" and I wanted to have it match up nicer--some folks like to step up to 2 1/2" which is fine too--I think 3" is overkill on this vehicle and will not sound as good. Because of OBDII & O2 sensors, going too big can SOMETIMES create problems. I grew up at a muffler shop in the old days when there was none of that and the only performance mufflers were glasspacks and turbo mufflers.
JK Newbie
Joined: Apr 2007
Posts: 28
Likes: 0
From: tennessee
engines do not need back pressure to run correctly. they need the proper velocity, a common theory when to much exhaust is used on an otherwise stock motor. when to much volume is introduced the velocity is reduced. chambered mufflers use a scavenging effect to produce gains, while straight through increase the volume of exhaust gases that can be expelled, if the engine can benefit from the increased volume power is gained. all engines (except tubocharged) need to have the proper scavenging and velocities applied to run at their peak of volumetric efficiency, since the exhaust is still producing pulses from the exhaust, as opposed to a steady stream of air (turbocharged), hope this helps when making a choice in exhaust systems.