all muffler and exhaust questions go here!!!!!!
Senior Member
Joined: Aug 2010
Posts: 893
Likes: 0
Model: Cherokee
i agree with you that there wold be a power gain, 4l, 5l, 2.5l doesnt matter. i just think that the data seems inaccurate to our engines, and that we cant judge performance gains on a different engine. but i could be completely wrong, and if i do so that would be great because i love learning new stuff. on another note would you reccommend borla over other brands based on the gains you have seen? im going exhaust shopping
I have Borla on 2 of my 3 vehicles. The 3rd I have Mangflow. I like Magnaflow sound on a v8 I do. I went with a 23" muffler. So, its quiet on highway, but throtty in town. Other 2 I have Borla. Including Jeep. Both vehicles I wanted some extra power. I think I got it.
On the jeep, the power gain I feel. Is it from the borla, or the down pipe and no more dent at top? I don't know. Is it from the whole setup now being 2.5" including tail pipe? Not sure. Is it the hi flow cat? Not sure. But, I do feel the difference with my new setup.
My other vehicle, I did the same. Replaced whole thing and included a Borla muffler. I also felt a performance gain.
CF Veteran
Joined: Apr 2011
Posts: 14,553
Likes: 1
From: Carrollton, GA
Year: 1994
Model: Cherokee
Engine: Inline 6 4.0L High Output
Originally Posted by Lyferxb9s
I don't want a stock replacement as I'm sure its stupid expensive. I just hate houw v6's sound with a muffler trying to sound like a v8.
Senior Member
Joined: Aug 2010
Posts: 893
Likes: 0
Model: Cherokee
Cherokee Forum Vendor
Joined: Oct 2012
Posts: 613
Likes: 0
From: Fort Dix, NJ :(
Year: 99
Model: Cherokee
Engine: 4ho
CF Veteran
Joined: Sep 2011
Posts: 10,447
Likes: 0
From: Frederick, MD
Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by Lyferxb9s
Congratulations you said the exact same thing the person before you said. Irregardless. I do not like how 6cyls sound with most mufflers. Looking for something that is as close to stock without paying the price for a stock.
CF Veteran
Joined: Nov 2011
Posts: 2,433
Likes: 6
From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
I've got a 4"x18" tip on mine and it sounds like a fricken cummins when it first starts up. After it warms up for a while though it purrs. It may not sound like a V8, but it's not far off. People ask if I have the 318 all the time. It's got a great sound and I get a lot of compliments on it. I got a little carried away with this lol, flowmaster 50s are just a bump up from stock.
CF Veteran
Joined: Nov 2011
Posts: 2,433
Likes: 6
From: Northern MN
Year: 1990
Model: Cherokee (XJ)
Engine: Renix 4.0
Senior Member
Joined: Aug 2010
Posts: 893
Likes: 0
Model: Cherokee
Last walker muffler I had, broke inside and rattled on my grand cherokee back 7 years ago. I'd go with Dynomax turbo muffler. Better quality. Quiet.
The Cherry bomb muffler is loud. The FM 50 is quieter. Dynomax is quieter than FM 50. I've had them all.
The Cherry bomb muffler is loud. The FM 50 is quieter. Dynomax is quieter than FM 50. I've had them all.
Last edited by CrawlerXJ; Oct 26, 2012 at 06:16 AM.