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Old 05-13-2013, 10:03 PM   #1
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Your exhaust experiance

Hey all,
Im trying to get some first hand experiences. Im shopping for catback ATM and with all the options out there is kinda overwhelming. So, what im looking for is the meanest sounding catback system. I like that deep growling sound...and im not sure if i can really expect power gains or not? I just wish the metal mulisha dual for the JK was made for the tj too! Looks and sounds sick! So lets hear some ideas! Help me make a decision!

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Old 05-14-2013, 07:26 AM   #2
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I just run walker pipes with magnaflow hardware. It's not too dissimilar to stock, but it's functional and there is a noticeable difference in the pull. Then I suppose there would be, the last system had more holes than swiss cheese.
In all honesty, I don't know many people who buy a Jeep for the sound it makes, and sometimes trying to make it sound "mean" will just end up sounding junk.
I do agree with the metal mulisha on a JK, it does sound good. But I'm not sure you'd ever replicate anything of that ilk on a 4.0, and certainly never on a four banger...

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Old 05-19-2013, 02:08 AM   #3
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I didn't buy my jeep to sound mean. I bought my jeep to offroad and modify it. I know its not going to sound like a v8. But theres some good sounding jeep out there and I was hoping to stimulate a conversation of peoples personal experience's with varying exhaust systems...particularly catback for $$$. Id love to do a full header back system but its not really feasible when I have many other things to purchase..starting with gears :/
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Old 05-19-2013, 05:51 AM   #4
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I did the dynomax cat back system for around $100 and a year later it still sounds great and hasn't rusted. Install was easy.

If you want you can go to pep boys, buy a flowmaster and the rear pipe section and build your own. It aint that hard. Yes it does sound better than stock, no it does not sound as cool as any v-8 but a little throatier than stock.

There are much more expensive options out there and you could sub that flowmaster for any number of performance mufflers in stock at your local auto parts store.

Jerry will be along soon to tell you how the stock system flows very well (it does) and you should not expect huge performance gains from doing this. He's right but it sounds liek you are going faster and isn't that the point!
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Old 05-19-2013, 05:51 AM   #5
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I keep hearing good things about the Flowmaster 40 series....I went on You Tube and listened to a few....I "think" thats what I am gonna do
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Old 05-19-2013, 06:31 AM   #6
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Flowmaster is a trusted brand but I remember them rusting out on the salt roads of NJ as a youth (installed a couple cat backs on some 5.0 mustangs). They do sound great though.

Anyone else got opinions on this?
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Old 05-19-2013, 07:14 AM   #7
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a little long but....you asked.....!!

My '04 TJ was going through Cats and throwing codes...I found out that it was because of the "premium fuel" that the TJ doesn't need.

I was fortunate that the shop I was using was part of a national chain and the guys liked Jeeps and Trucks so they kept swapping the Cat, (under warranty) after I bought the first one. Guess they had to but anyway, the last Cat was a "high flow" CAT that we coupled with a Flowmaster muffler and a chrome angled tip. Those 3 components are now about 4 years old, not rusted and sound great. I get more questions about the sound of the Jeep than almost anything else.

Granted it is not a V-8 (obviously) but it does sound pretty good.....I think I put almost $300 in it (because of the Cat) but I will replace it with the same thing.

That (CAT issue) started at just over 80K miles...it now has 160K+ and still all good.

One thing though it has to be "run in" a little, it doesn't sound the same as it did the day it was installed, and was told by a few gear heads that is "normal" the tone changes a little in the first few months.
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Old 05-19-2013, 07:50 AM   #8
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There are some videos on Youtube from JP Magazine from an exhaust shootout. Half of the sound for the video is recorded inside the cab and half outside. I personally like the sound of the magnaflow system. You can give these a listen to get a better idea what yours might sound like with various systems.













I think that's all of them.
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Old 05-19-2013, 08:26 AM   #9
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I recently put the Bank's Monster, a straight through design, on my rig. I used the short pipe that exits under the cab because the new larger pipe wouldn't make it past the rear axle truss.

It sounds great and throttle response has improved a bit. Engine temps while sitting in stop and go traffic is about 5 degrees lower (I suspect due to the short pipe).

It's stainless and was just over $200.
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Old 05-19-2013, 11:43 PM   #10
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Quote:
Originally Posted by BurlySoldier View Post
Jerry will be along soon to tell you how the stock system flows very well (it does) and you should not expect huge performance gains from doing this. He's right but it sounds liek you are going faster and isn't that the point!
hahaha so true! Especially the last part. And I always look forward to Jerry poppin in!

And thanks to everyone for bringing their .02 cents and personal experiences in! Love to hear em. Ive looked at the flowmaster 40 but not the dynomax...but that monster sounds wayyy good. But I might go with the proven tech that is flowmaster unless someone can point me in a better direction! And thank you to whom ever posted those vids!!! We have any more personal experiences with aftermarkets?!?!?
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Old 05-19-2013, 11:58 PM   #11
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Hey Jp2611,

Do you remember which brand of "high flow" cat you ended up with? I'm going through the dreaded O2 sensor/Cat diagnosis, and would like to tackle the exhaust as well if I end up needing a new converter.

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