all muffler and exhaust questions go here!!!!!!
I just got it as my first car Thursday so everything was like this when I bought it. I just don't wanna bring it to a shop and get charged a couple hundred for something like that lol you know any cheap exhausts that would sound pretty decent on these?
CF Veteran
Joined: Nov 2011
Posts: 2,433
Likes: 6
From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
Some will tell you magnaflow, others will tell you flowmaster. Then there's those who think everything but stock sounds like crap. I myself liked mine best straight piped (with a cat) but I've got a long tube header, 2.5" pipe, and a 4"x18" tip. Get on youtube and check some systems out.
Popular Mufflers: Magnaflow, Flowmaster 40,44,and 50, cherry bomb glasspack, thrush welded, spintech, and the almighty straight pipe
Keep in mind that most states have noise regulations and you WILL get pulled over for loud exhaust. I got sick of it so I threw a cheap muffler on. The 40s and magnaflows seem to have the right amount of volume and tone.
Popular Mufflers: Magnaflow, Flowmaster 40,44,and 50, cherry bomb glasspack, thrush welded, spintech, and the almighty straight pipe

Keep in mind that most states have noise regulations and you WILL get pulled over for loud exhaust. I got sick of it so I threw a cheap muffler on. The 40s and magnaflows seem to have the right amount of volume and tone.
CF Veteran
Joined: Sep 2011
Posts: 10,447
Likes: 0
From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by a_shirey
Anyone have a link to the APN header? I only found one on Amazon, but it doesnt say its for a cherokee, just the 4.0.
Newbie
Joined: Mar 2013
Posts: 26
Likes: 1
From: Grapevine, TX
Year: 1998
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Amazon has 1 left.
Thanks.
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
Ordered my APN header. Now I need to order my cat, muffler, and tailpipe.
Will these fit together well?
http://performance-curve.com/96-00je...rter23226.aspx
http://performance-curve.com/84-01ch...ailpipe-1.aspx
I want to get the super 40 muffler.
Will these fit together well?
http://performance-curve.com/96-00je...rter23226.aspx
http://performance-curve.com/84-01ch...ailpipe-1.aspx
I want to get the super 40 muffler.
CF Veteran
Joined: Nov 2011
Posts: 2,433
Likes: 6
From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
Originally Posted by a_shirey
Ordered my APN header. Now I need to order my cat, muffler, and tailpipe.
Will these fit together well?
http://performance-curve.com/96-00je...rter23226.aspx
http://performance-curve.com/84-01ch...ailpipe-1.aspx
I want to get the super 40 muffler.
Will these fit together well?
http://performance-curve.com/96-00je...rter23226.aspx
http://performance-curve.com/84-01ch...ailpipe-1.aspx
I want to get the super 40 muffler.
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO
You're paying way too much for the cat. Scroll down to the bottom of the cat page with all the brands and click on thunderbolt ceramic spincat. $40. Not good enough? Click the metallic option. $65 and probably the highest flowing cat on there. 300 honeycombs per square inch, the ceramic one is 400. I have the metallic core and love it. I ran around straight piped with it and it didn't do a thing against sound quality, I got compliment all the time.
CF Veteran
Joined: Jan 2012
Posts: 8,272
Likes: 1
From: Baltimore, MD
Year: 1999
Model: Cherokee
Engine: 4.0 I6 HO


