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00wj 09-18-2009 07:35 PM

Help me create a custom exhaust!
I have a 4.0 WJ with a cold air intake, ported throttle body and spacer, 91 tuned superchip, and a 180 thermostat. I would like to know what type/size of tubeing I should go with along with what muffler and
Catalytic converter... I perfer a nice sound over loudness and what would get me the most power out of it... I dont really know much about this so please help!

TimmyB 09-18-2009 07:44 PM

Re: Help me create a custom exhaust!
Well, im def not an expert on exhaust, but my magnaflow cat back exhaust I have has 2.5" pipes. I almost wanna say the sound you will get depends on the brand/type of muffler you buy. I found alot of good clips of exhuasts on youtube to listen too.

Are you doing this yourself or going to a shop? Maybe go to a few local shops and ask questions, then steal there ideas. Lol. I do that all the time.

00wj 09-18-2009 08:02 PM

Re: Help me create a custom exhaust!
I would be going to a shop... haha good idea

i really like how this one sounds reving but not a idle

TimmyB 09-18-2009 08:12 PM

Re: Help me create a custom exhaust!
Im looking to add a dual set-up. I want to delete the muffler altogether and install the srt stock resinators, like scott has. I think that sounds sick. Maybe look into something like that. I would just cut out the middle of my WK bumper and install the trailer hitch bezel for the tips, to clean it up.

Dylans3960ccs 09-18-2009 08:13 PM

Re: Help me create a custom exhaust!
well then I must reccomend these videos

I think that these sound sweet.

00wj 09-18-2009 08:16 PM

Re: Help me create a custom exhaust!
That would look and sound awesome on yours! i would like to have a dual exhaust on my wj but ive heard many shops dont want to do it.

Dylans3960ccs 09-18-2009 08:19 PM

Re: Help me create a custom exhaust!
it really doesn't work if you want dual put the back, but if you just want true dual exaust then either you'll have to have dual side exit exaust or just put two pipes next to each other at the stock position.

00wj 09-18-2009 08:22 PM

Re: Help me create a custom exhaust!
not bad dylan i thought about the borla but is about $500-600

Dylans3960ccs 09-18-2009 08:23 PM

Re: Help me create a custom exhaust!
^^ Ouch!

but I think the sound speeks for it's self ;)

dreamer1213 09-19-2009 03:01 PM

Re: Help me create a custom exhaust!
The shop will most likely be using 2.5" pipe Hector...which is plenty big...stick to the single in and out....its too much money to get duals...and you're very right....almost no exhaust shop wants to do it to a Jeep...

Get this muffler if you want this sound:

Flowmaster: Truckish and throaty, hollow and raspy at times.

Magnaflow: Smooth, mellow, and deep.

Borla: About the same as Magnaflow, just a little quieter.

There are lotsa other mufflers out there, including Gibson, Corsa, and Dynomax, but the 3 I mentioned above are the most popular.

I'd leave the cat alone, unless you just want a hi-flow cat. Then go with car-sound, which is a Magnaflow product I think.

I had a Magnaflow muffler on my ZJ with the 4.0L I6, and it sounded great paired with the K&N intake. I'm running a Magnaflow on my WJ too at the moment, and LOVE it!!

TimmyB 09-19-2009 04:31 PM

Re: Help me create a custom exhaust!
^^^agree with above, about the sounds from the mufflers from at least what I have heard from friends having them. For some reason I associate flowmaster with trucks, very throaty loud sounding. I think my magnaflow sounds fits more to an suv, def noticable but not like a truck. Scott has a clip of his set-up somewhere on here and I luv it, thats what made me want to delete the muffler and use the srt stock resisnators.

My absolute favorite exahuast is the infinitys, I can pick out that sound anywhere because its so distinct. But I have no idea how to get that sound from mine.

00wj 09-20-2009 12:42 AM

Re: Help me create a custom exhaust!
Thanks Hannes! I been looking and I think I would like to go with the magnaflow... Any idea how much you think it would cost including a tip and labor? since you've had like 20 done already :lol:

Timmy-Keep us updated on your plans for an exhaust :thumbsup:

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