...btw eliminating the cat is illegal by federal law...I see closure ahead!
Anyways, from what I've read you need a little bit of backpressure on the 4.0 to have it reach its full potential...but keep in mind it just wasn't meant to go fast lol. They make hi-flow cat's and mufflers.
PM Kolak, he's the man to talk to with exhaust.
[CENTER][URL="http://www.jeepforum.com/forum/f197/breckenridge-redemption-build-thread-3111777/#post29271881"]Build Thread: "The Jeep" 1995 ZJ Laredo I6 212k. 20 years 1 family.[/URL]
The New DD: 2015 Dodge Charger SXT Rallye[/CENTER]