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Old 03-08-2013, 02:05 PM
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i am buying a flowmaster super 40 on my jeep. thinking about putting a high flow cat. but cant find one. i want a top brand. i went to magnaflow but they are just stock replacements. it doesnt say anything about it being a high flow. i want my jeep sounding mean. if u guys are in maryland and near hagerstown message me i would like to hear ur exhaust if u have anything done. i do have a K&N cold air intake on it btw.
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Old 03-08-2013, 02:09 PM
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Originally Posted by Charlie1670
i am buying a flowmaster super 40 on my jeep. thinking about putting a high flow cat. but cant find one. i want a top brand. i went to magnaflow but they are just stock replacements. it doesnt say anything about it being a high flow. i want my jeep sounding mean. if u guys are in maryland and near hagerstown message me i would like to hear ur exhaust if u have anything done. i do have a K&N cold air intake on it btw.
I can try and find a video. My setup was a unversial magnaflow, super 44 and a 2.5" tailpipe it growls more than roars. I would just get the magna flow one amazon works just fine.
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Old 03-08-2013, 06:59 PM
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Does anyone know if the downpipe from a 4.0L HO ZJ is the same as one for a 4.0L HO XJ?
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Old 03-08-2013, 07:25 PM
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I'm going to buy a spintech 6000. What is the inlet/outlet size of our stock muffler?
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Old 03-08-2013, 07:33 PM
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Originally Posted by theyammieguy
I'm going to buy a spintech 6000. What is the inlet/outlet size of our stock muffler?
2¼" Inlet (Center) / 2¼" Outlet (Offset)
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Old 03-08-2013, 07:41 PM
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Thank you.
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Old 03-09-2013, 01:05 PM
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Arrow If you need a catalytic converter
Originally Posted by UsmclovesXJ
if you go from your stock muffler and pipe and run straight pipes all the way back. You will fell some more torque at low end BC the engine won't have that backpressure to deal with...but of course that is not prefered and should at least a highflow cat.
If you need a catalytic converter, this site cwik.com sells them at the lowest price I could find, no sales tax, and free shipping! AND I found a 5% off coupon for their Magnaflow Catalytic converters. www.cwik.com They are Authorized Dealers.

coupon code: cwik5
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Old 03-09-2013, 01:12 PM
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Smile coupon for magnaflow cats
Originally Posted by Charlie1670
i am buying a flowmaster super 40 on my jeep. thinking about putting a high flow cat. but cant find one. i want a top brand. i went to magnaflow but they are just stock replacements. it doesnt say anything about it being a high flow. i want my jeep sounding mean. if u guys are in maryland and near hagerstown message me i would like to hear ur exhaust if u have anything done. i do have a K&N cold air intake on it btw.
If you end up buying a Magnaflow Catalytic converter, here is a 5% coupon (cwik5) to use at cwik.com, they are an authorized dealer, lowest prices, free shipping and they pay the taxes. Ya cant beat that!
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Old 03-09-2013, 03:46 PM
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Originally Posted by riley3d
If you need a catalytic converter, this site cwik.com sells them at the lowest price I could find, no sales tax, and free shipping! AND I found a 5% off coupon for their Magnaflow Catalytic converters. www.cwik.com They are Authorized Dealers.

coupon code: cwik5
I thought I heard that they passed a law where internet sales had to include sales tax?
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Old 03-09-2013, 03:48 PM
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Originally Posted by theyammieguy

I thought I heard that they passed a law where internet sales had to include sales tax?
There is only tax if you reside in the state that the store operates in.
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Old 03-09-2013, 03:59 PM
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Ahhhh, thanks.
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Old 03-09-2013, 04:01 PM
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Originally Posted by theyammieguy
Ahhhh, thanks.
No problem.
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Old 03-09-2013, 04:11 PM
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For those interested in hearing a custom 2.5" exgaust on an Xj Here is a couple videos I shot last weekend. Part #'s to all parts are in the videos. And they were bought from mudfrog on here

( I also have a custom 2.5" Mandrel bent front pipe )

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Old 03-09-2013, 04:43 PM
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Straight pipe's still better I don't have straight pipe vids though

But I do have these:

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Old 03-09-2013, 06:10 PM
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Originally Posted by austinjoe13
Straight pipe's still better I don't have straight pipe vids though

But I do have these:

Video Link: http://youtu.be/9SWssCQGtx0
Video Link: http://youtu.be/8ht7TQk2oGw
Sure if you like burnt valves, unwanted attention from police and to fail emissions testing.
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