Modified XJ Cherokee Tech XJ (84-01)
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all muffler and exhaust questions go here!!!!!!

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Old 02-23-2012, 06:00 PM
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Figure it up the tip is 30. Muffler looks about 70-80
Then pipe going in and out 20$ set it about 100-115.
Old 02-24-2012, 02:55 PM
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Is MudFrog still around ? I want to buy a exhaust but i have questions about an item.
Has anyone else bought from him "Performance Curve" ? Satisfied?

I would also like to ask you guys about high flow cats.
Advantages over stock? worth $ ? I have 96 cherokee 4.
Old 02-24-2012, 05:44 PM
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I bought from them very satisfied!!
Hi flows and stock cats pretty much the same.
No real diffrance.
Old 02-24-2012, 05:47 PM
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I too am a satified customer. Extremely fast shipping.
Old 02-24-2012, 07:23 PM
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So I was thinking of going with a flowmaster 44 muffler for my xj. But having flowmasters on other vehicles in the past I'm aware of the flowmaster droning. Basically I just want something with a nice deep idle. Any suggestions?
Old 02-24-2012, 07:26 PM
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Spintech!
Old 02-24-2012, 07:26 PM
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Cherry bomb glass pack, I love mine at all rpms
Old 02-25-2012, 01:25 AM
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Has anyone ordered this from him?
http://performance-curve.com/84-01ch...lpipe-1-1.aspx
I need to know what size the piping is.

Those of you who have mandrel piping on your rig , what is your set up like?
Did you go 2.5 from the muffler back or all the way to the down pipe 2.5 ?
I was just wondering if muffler back was worth it.
Old 02-25-2012, 03:43 AM
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I pm'ed him your exact question 2weeks ago, have yet to get a reply. I wished it was 2.5
Old 02-25-2012, 11:35 AM
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Originally Posted by courtney42
Has anyone ordered this from him?
http://performance-curve.com/84-01ch...lpipe-1-1.aspx
I need to know what size the piping is.

Those of you who have mandrel piping on your rig , what is your set up like?
Did you go 2.5 from the muffler back or all the way to the down pipe 2.5 ?
I was just wondering if muffler back was worth it.
I think muffler back would be more for sound than performance. Just a thought. My dad's jeep has 2.25" pipe all the way back with a cherrybomb and it seems to breathe really well. I'm gonna do 2.5 from the downpipe back on mine. Got my cat from PC, can't wait to have it all together

Last edited by austinjoe13; 02-25-2012 at 01:53 PM.
Old 02-25-2012, 01:41 PM
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If you hear from MudFrog let me know. Nobody will answer the phone at PerfCurve.
Old 02-25-2012, 01:57 PM
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Their still doing business. What's your question about PC?
Old 02-25-2012, 05:00 PM
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Originally Posted by UsmclovesXJ
Their still doing business. What's your question about PC?
I hope they are. I just ordered a kit from them. Got my reciept but no tracking number yet...
Old 02-25-2012, 08:22 PM
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Default downpipe on 2000 XJ

Quick question...

Anyone here know where i can locate a performance down pipe for this model?


Thanks for the input!
Old 02-25-2012, 08:27 PM
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PC doesn't sell down pipes.


Quick Reply: all muffler and exhaust questions go here!!!!!!



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