all muffler and exhaust questions go here!!!!!!
CF Veteran
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by UsmclovesXJ
-Thinking-sounded like the easyest way...i will take her to a muffler shop. To get her fixed up
What I did was get a turndown that was 2.5OD and some exhaust wrap to use as an "adapter".
Thread Starter
::Regional Moderator::
Joined: Aug 2011
Posts: 4,742
Likes: 10
From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
So a turn down on 2.25od will work well?..im bandclamping the turndown. So no exhaust wrap.....past that I hope that works...where did u buy your turndown...autozone got on my last nerve today (just the jville branch). No more exhaust parts from there
Thread Starter
::Regional Moderator::
Joined: Aug 2011
Posts: 4,742
Likes: 10
From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
ok guys hacksaw and stock muffler equals death....but my cat broke off...so i gota go to my buddys house to weld it back on.
For those running a Flowmaster Super 10 or equivalent, how do you deal with having a center in / center out ? The original is offset in / center out. How do you line it up, or do you just route it different than stock?
Seasoned Member
Joined: Nov 2011
Posts: 276
Likes: 0
From: Georgetown, TX
Year: 2001
Model: Cherokee
Engine: 4.0L 6Cyl
my question is similar to the above. and is there any direct fit kits with the flowmaster 10? or do i have to just buy the muffler and have it custom fit?
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
Planning for when I get around to doing exhaust. I busted my cat and it needs to be replaced, and my muffler has seen better days. I'm thinking next time around, I do 2.5" from header back with a high-flow cat and a Super 44 Off-Road. Opinions?
Thread Starter
::Regional Moderator::
Joined: Aug 2011
Posts: 4,742
Likes: 10
From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
no the fm 10 only comes in the 2.5 size.
Thread Starter
::Regional Moderator::
Joined: Aug 2011
Posts: 4,742
Likes: 10
From: Jacksonville, NC
Year: 1993
Model: Cherokee
Engine: I6 4.0L HO
You can save money and do it your self and weld it its costeffective and easy...for now that's your best bet....go to a muffler shop and ask them to weld it...if its more then 150$ don't do it just get new headers.
CF Veteran
Joined: Mar 2011
Posts: 1,423
Likes: 0
From: Owensville, MO
Year: 1998
Model: Grand Cherokee
Engine: 5.9


