Dual Exhaust questions
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JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by ToolManTimTaylor
Why not just get the gibson muffller and voila!
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=245942"/>
Ahh crap I forgot about the exit through holes thingy .... scratch that. Custom shop time! Been there and done that on my last mustang. Best thing I ever did!
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JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by JPop
I'd just run a 2.5" system with a short exhaust tip and for the other outlet use the same tip and a dummy pipe. It will serve all of the purpose with none of the downside.
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JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by JKred
I can honestly say my MBRP muffler is perfect in sound. If I were you this is what I would do.
Get either the MBRP or dynomax muffler. I'm sure they will sell you just the can. Come straight off the y-pipe like the single exhaust will and put the can in the offroad muffler relocation (so in a 2door under the driver rocker panel) then after the muffler split into 2, 1.75" pipes out the back heading toward the backup light holes. End with big tips.
question tho. If the dynomax wouldn't normally drone....and wouldn't normally loose pressure. Why don't I just run dual 2.5 off it to the end of the rig? Or will that piping change it?
JK Junkie
Joined: Jul 2008
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From: Lakewood, OH
Ya...but then it's poser. No exhaust coming out of the one side. Idk man...I don't do stuff for looks. I really like the way stuff sounds too. My buddy bstelling has the rock crawler dyno max and I'm jealous of the sound. Maybe I'll get it $70 then just run off of it to the end of the jeep with some piping? Instead of dumping it behind the axle? That sounds interesting
JK Junkie
Joined: Jan 2011
Posts: 3,817
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From: Covington, LA
Originally Posted by JKred
I wanted to go with dual exhaust, but the reason I didn't is the exposure wheeling. You WILL crush rear exiting tips offroad, and possibly the can as well, if you see rocks and/or steep departure angles.
That's why I went with an offroad system. Tucked nicely in the frame away from harm and sounds mean as hell!
That's why I went with an offroad system. Tucked nicely in the frame away from harm and sounds mean as hell!
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JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by JKred
Hahahah
sorry Sean but I have to laugh at that
Thread Starter
JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by JKred
Your adding pipe volume. I'm not sure. It's my understand, the more I think about it (and please, someone correct me if I'm wrong) changing volume in the cold section, or from the y-pipe back, has minimal effect of back pressure and low end torque. Where you notice the low end losses is when you change the hot section, or heads and cats. That's why headers are built and tuned using a dino.
This would mean you could most likely run 2.5 after the exhaust cans all the way out back with both pipes, but I would run the same size as the crossover and y-pipe exit from the y at least to the exhaust can.
Someone please chime in. I know I've read this somewhere.
hahahaha
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JK Junkie
Joined: Nov 2010
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From: Whitefish,Montana
Originally Posted by GreenJK07
I run a dynomax rock Krawler. I can tell you that my buddy HAD the MBRP dual tip the same jeep (07 2 door). Long story short, we were wheeling and he went up a rock and couldn't get up the very top, he backed down the trail to get more momentum and when he did so, both tips folded backwards under his jeep and it ripped every hanger out to the headers and also cracked the seal they have on the headers to the down pipe to the exhaust. This was the FIRST wheeling trip he made with the new exhaust. After we wrenched for about 2 hours to get the mangled cat back off, he took it to a shop and they charged him $250 to fix the leak in the headers and put the stock system back on. He was pissed! IMO, if your are going to wheel, DO NOT buy a dual tip system. I've seen the failure first hand! You will end up spending a whole lot of extra money and going to a single outlet or rock krawler kit!