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Muffler And Pipe Size...

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Old 10-03-2009, 11:09 PM
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Question Muffler And Pipe Size...

Whats everyone running as far as a muffler and size of exhaust pipe under your XJ with a 4.0?. Im gonna get new exhaust ran under mine and im looking for a deep throaty sound when rippin it up but not too loud and with a tone at idle. NO kinda rice burner noise wanted!
Old 10-03-2009, 11:41 PM
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Year: 1996 Limited
Model: Grand Cherokee
Engine: 5.2
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Im running the stock pipes with a magnaflow muffler. I like it its not really load when on it at all but I like the tone when just cruising down the road. But I do want to go bigger. lol
Old 10-03-2009, 11:52 PM
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Year: 1993
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Engine: 4.0 I6 (30 over)
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I WANt get like a 3inch exhaust from the header back a a flomaster but I have heard if you do that you loose torq
Old 10-03-2009, 11:57 PM
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I have heard that to I belive its just your losing back pressure which with make you lose some torque. I am most likely going to move up to a 2.5" pipes.
Old 10-04-2009, 07:10 PM
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Bump...
Old 10-04-2009, 07:13 PM
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Year: 1993
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Engine: 4.0 H/O I6
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im running stock 2" pipe with a cherry bomb glasspack. very nice for 20 doll hairs.
Old 10-04-2009, 08:00 PM
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Year: 1988
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Engine: Inline 6 4.0
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i have a 2.5 to a dynamax ultraflow with 2.5 cat
sounds so good
most of those who hear it love the sounds it makes.
do u think its a good idea to just replace the air filter with a higher flow one?
or should i redo the intake piping?
intake with exhaust = bigger and badder sound

(most of the time) lol!
Old 10-04-2009, 09:11 PM
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Id go with the 2.5 inch personally. I have a 2.5 inch high flow cat and a 2.5 inch summit racing welded steel muffler. The muffler was only 37 bucks. I used to run it without a tail pipe, but the cops dont really like it. It was a little loud. Sounded bad *** but I cant afford the tickets.
Old 10-04-2009, 09:24 PM
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Hmm.. wondering if anyones ever run a "Turbo" muffler or even a 40 series flow master.. I Got 2 sets of both... Might just have to cut my stock out and weld in one of these just to see how it sounds..
Old 10-04-2009, 10:04 PM
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alot of people run 40 series flow master on a cherokee just look it up on youtube
Old 10-04-2009, 10:14 PM
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I have a Magnaflow cat and a dynomax highflow cat back. It sounds great.
Old 10-04-2009, 10:18 PM
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The 40 series flow master muffler is definitely the perfect choice...
You'll never regret having one installed on your jeep...
Old 10-10-2009, 06:03 PM
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Year: 1988
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Engine: Inline 6 4.0
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but isnt tehre a big amount of resonance while driving?
Old 10-10-2009, 07:02 PM
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I run a 40 series, and it only resonates at 1800 to about 2000 rpm
Old 10-10-2009, 07:14 PM
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My whole exhaust just fell off the other day. thank "GOD" for my 3in lift. i went with the "Thrush" welded muffler and a stock cat. sounds nice a quiet but when you get into it, it has a nice tone. all is a 2 1/4 set up. muffler was $40 at Advanced Auto.


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