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Old 07-19-2010, 04:46 PM   #1
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Flowmaster Super 40

hey, I have an 06' TJ and I am really looking into one of these exhaust systems.. but im looking for some feedback. Just looking around I haven't seen any complaints but I was wondering if anyone else had any experience with these. Any input would be appreciated.

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Old 07-19-2010, 08:57 PM   #2
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I'll post here to bump it back to the top of the list. I have been thinking about this too. I have a '97 with the original muffler that is getting quite rusty.....

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Old 07-19-2010, 09:07 PM   #3
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i went with the banks cat-back, its stainless steel and is a 2.5" pipe rather than the stock 2.25" pipe. it sounds great, have no complaints at all.
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Old 07-19-2010, 09:11 PM   #4
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I have the Flowmaster 40 Series and I really like the sound it gave my Jeep. It is a lot louder than the stock muffler but it gives a deeper more aggressive sound. I kept everything the same on mine except for the muffler. I just welded it in using the original pipes because they were still good. I know that you will read that you will get more horsepower and better gas mileage, but I did not see a change in either of those things. You should look on youtube and do a search for Jeeps with the Flowmaster Super 40 to find out how it will sound.
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Old 07-19-2010, 11:19 PM   #5
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The super 40 sounds AMAZING on larger V8's...but I'm not sure how it would sound on the 4.0...could be cool though. If you find any sound/video clips...be sure to post em here for us! lol
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Old 07-19-2010, 11:57 PM   #6
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i have it. its ok sounds not that great on the 4.0 compared to v8s. its loud though. i did a custom tailpipe so i have dual exhaust on mine making it louder than most. what are you looking for from your muffler. if you just want sound look into magnaflow they have a more throaty aggressive sound. flowmaster is just loud.
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Old 07-20-2010, 01:12 PM   #7
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i was going more for the sound.. I was planning on replacing the muffler then getting a wider pipe from there back.. I also heard I might see a difference with a magnaflow highflow cat or something like that, i cant remember exactly what it was called.

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