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Old 06-01-2013, 09:11 AM
  #3286  
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Originally Posted by ironman13
I was thinking of removing my cat and cashing it in (before some douchebag does it for me) on my XJ and running a straight 2&1/2 in. pipe all the way back, will there be any performance repercussions and will it be loud? I was planning on reinstalling the O2 sensor and maybe throwing in some kind of muffler.
Cat removal talk is illegal, and is not allowed to be discussed on this forum. Just a heads up mate.
Old 06-01-2013, 09:43 AM
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Originally Posted by my89xj

Cat removal talk is illegal, and is not allowed to be discussed on this forum. Just a heads up mate.
This, if you're worried about it, weld the cat on. I ran a high flow cat, no muffler, and a 3" dump for quite a while. It was LOUD
Old 06-01-2013, 08:50 PM
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Originally Posted by PNWjeeper
How much did anyone pay for a 2.5 system made and installed by a shop? I got an estimate of about $300 that's for a manifold installed (but not purchased) but everything else is made/purchased and installed.
I paid $ 225 for a mandrel bent 2.5" downpipe. And for the shop to weld up my High flow cat, magnaflow muffler , and 2.5" tailpipe
Old 06-01-2013, 09:16 PM
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Originally Posted by Tom95YJ

I paid $ 225 for a mandrel bent 2.5" downpipe. And for the shop to weld up my High flow cat, magnaflow muffler , and 2.5" tailpipe
Did you purchase the cat and muffler or was that part of the $225?
Old 06-02-2013, 12:12 PM
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Default need help on exhaust mods

im using my 4.0L stock efi cherokee limited for adventure off road competition
right now i need hints on what kind of header and exhaust setting
now my car has stok headers and then semi free flow resonator 2.25" and then a long flexible at the end
Old 06-02-2013, 12:17 PM
  #3291  
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Originally Posted by PNWjeeper

Did you purchase the cat and muffler or was that part of the $225?
I got the cat muffler and tailpipe from mudfrog on here here for 203 shipped from Va to Ut
Old 06-02-2013, 12:26 PM
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Ooops, my bad! Upon further review I'm keeping the cat!!
Old 06-02-2013, 12:30 PM
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Originally Posted by ProTurbo
im using my 4.0L stock efi cherokee limited for adventure off road competition
right now i need hints on what kind of header and exhaust setting
now my car has stok headers and then semi free flow resonator 2.25" and then a long flexible at the end
Apn header, 2.5" pipe, thunderbolt high flow metallic core cat, then the muffler depends on the competition. If it's like top truck challenge get a FM 40/50, if it's a race go straight piped or glasspack
Old 06-02-2013, 03:57 PM
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Originally Posted by ProTurbo
im using my 4.0L stock efi cherokee limited for adventure off road competition
right now i need hints on what kind of header and exhaust setting
now my car has stok headers and then semi free flow resonator 2.25" and then a long flexible at the end
What are you asking?
Old 06-02-2013, 05:03 PM
  #3295  
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i want to try and see if i can take my muffler off and run it just cat, hopefully ill like the noise but my question is.. it the muffler welded on from factory? im not cutting it off so i dont even want to waste my time messng with it dor a while just to figure out at the end that its welded on...??
Old 06-02-2013, 05:06 PM
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Originally Posted by 1998xjspt
i want to try and see if i can take my muffler off and run it just cat, hopefully ill like the noise but my question is.. it the muffler welded on from factory? im not cutting it off so i dont even want to waste my time messng with it dor a while just to figure out at the end that its welded on...??
Mine was clamped, and I got tired of the noise after a week
Old 06-02-2013, 06:16 PM
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Originally Posted by my89xj
Mine was clamped, and I got tired of the noise after a week
excessively loud?
Old 06-02-2013, 06:34 PM
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Originally Posted by 1998xjspt

excessively loud?
There is a reason it's called a muffler.
Old 06-02-2013, 06:48 PM
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Originally Posted by 1998xjspt
excessively loud?
Do it, you'll find out. I loved it, but the cops didn't
Old 06-02-2013, 06:52 PM
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Originally Posted by austinjoe13
Do it, you'll find out. I loved it, but the cops didn't
i hate how cops dont like loud vehicles. i understand if its a stock POS civic that blows black smoke and sounds like ****, but a mud truck or anything else that has a decent setup. what if its just a badass rig with a nice motor,header combo that makes it sound nice..always gotta be complainin bout something...


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