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Topic Review (Newest First)
04-24-2011 03:57 PM
Originally Posted by GrandpaStyx View Post
I could be wrong but I think the wider the exhaust pipe is the deeper the sound will be and I think that even just changing the size and shape of the tail pipe will have an effect on the sound produced.
the size of the pipe does effect the sound, but also the performance, if you go to a larger pipe for the sound you will lose some low-end power, but generally gain some high-end power, altho this is only to a certain extent, theres actually a pretty complex formula to figure out exactly what size piping to use, so i wouldnt mess with it to much leave it to the engineers lol(unless of course its diesel , then go BIG )
got this from- Exhaust Header Design Comments
The formula to calculate pipe size is:

Area of Primary Pipe = RPM × Cylinder Size ÷ 88,200

This determines the pipe's cross-sectional area, from which we can calculate the ID. Typical exhaust pipes are 18ga. (wall thickness of .049”), so the OD will be .098” larger. From this we can construct a formula for an 8 cylinder motor, and factor in the 18ga. wall thickness:

Area of Primary Pipe = RPM × Motor Size ÷ 705,600

Pipe ID2 = RPM × Motor Size ÷ 705,600 ÷ .7854

Pipe ID2 = RPM × Motor Size ÷ 554,177

ID = (RPM × Motor Size ÷ 554,177).5

OD = (RPM × Motor Size ÷ 554,177).5 + .098”
04-24-2011 09:14 AM
GrandpaStyx I could be wrong but I think the wider the exhaust pipe is the deeper the sound will be and I think that even just changing the size and shape of the tail pipe will have an effect on the sound produced.
04-24-2011 02:44 AM
Originally Posted by Williamc141 View Post
Can you even put a dual exhaust on a TJ?
you cant put a true dual exhaust, as it is an inline engine with 1 header, but a Y pipe + some piping would allow for a dual exhaust look with 2 tail pipes
04-24-2011 02:41 AM
Williamc141 Can you even put a dual exhaust on a TJ?
04-24-2011 02:05 AM
scgeek12 ok i think i got the video this time-

YouTube - jeep with flowmaster 40
04-24-2011 02:00 AM
scgeek12 uploading a video of my exhaust i took right after i had a local muffler shop weld up most of the cracks in my header, still has a few cracks, (you can here the leak at the end pretty well), its all stock except a flowmaster 40, i love the way it idles, not to loud but nice and low, i do eventually want to bring it in and get tip replaced as you can see its a big ugly from being old :P
04-24-2011 01:51 AM
topher38 heres a link to the magna flow i bought about two weeks ago the sound is much deeper not so much louder. i got it from 4 wheel parts. its a cat back so not a full system it cost me exactly 300.30$

YouTube - 02 tj with magna flow exhaust
04-24-2011 01:23 AM
Steve Loves Jeeps I saw a JK in the city the other day with the dual exhaust and it looked awful. Didn't help that is was a pure mall crawler, but I feel the dual exhaust isn't meant for a Jeep.
04-24-2011 12:26 AM
burton160w Mine has a Borla and I like the sound, nice deeper growl.
04-24-2011 12:09 AM
Northwest4x4 I like my jeep quiet, so stock is best for me. I am not a fan of loud vehicles unless they are muscle cars like my 67 Mustang or turbo diesels.

Not that you care lol. Anyways... My old jeep had a banks setup and it wasnt too bad.
04-24-2011 12:06 AM
Sherpa Nobody that I know of makes a "dual exhaust" system for a TJ. If you want a dual look, it's going to be custom--bring money.

I wanted my 4.0L TJ to make some more noise, so I had the stock muffler cut out. In its place, I grafted in a Magnaflow muffler. It does now make more noise, and it's a deep, mellow tone that sounds nice and authoritative... but I'm disappointed because it is still too quiet for my tastes. Oh, well.
04-23-2011 01:33 PM
Exhaust Ideas?

Hey all, im getting a new exhaust system for my 02 Jeep Wrangler TJ Sport, i want a dual exhaust if possible, and i really want a low tone, i had a glass pack on before and its sounds more like a rice burner than anything. So if you could give me some links, or names of systems to get i would greatly appreciate it also, my price range is about $350 or less if possible.

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