i have a magnaflow on my 4.0 and i really like it, its a little quiet though i think. sometime this summer im going to cut it out and replace it with a magnaflow magnapack

 

did you notice a difference in performance at all with magnaflow?

 

on the butt dyno yes, but i believe it was also helped by my CAI.

 

personally i think the magnaflow sounds pretty sweet i just ordered one for my 4.2 and i have heard it on a few 2.5s and it sounded pretty good on a 2.5

 

When my stock muffler blew out I put on a Dynomax cat back. It started to annoy me with all the noise so I replaced the muffler with a new Magnaflow someone gave me. It was a little quieter but still to noisy for me. The deceleration noise and constant rumbling got to me. I took it of and replaced it with a stock type muffler and I am happy now. Some people love it some hate it. I saw now power difference with any of the mufflers.

 

flowmaster 40
magnaflow cat
not much performance difference, i just did it for the sound

 

thanks for the input guys it really helps :thumbsup:

 

6 months or so ago I put on a Magnaflow Cat, and a Dynomax muffler. I found it to only be marginally different from the existing muffler, a little bit deeper, but not loud at all. I really don't care for loud exhaust and am very happy with this combination.

 

go with a borla.

 

stock replacement tailpipes are a pretty good noise supresser too. the factory one was ok becasue it was mandrel bent but the cheap replacements from advance or autozone have those accordian bends in them which I think restrict flow and quiet it down quite a bit. I have a jba header a high flow cat and a super 40 and it sounded better but not really much louder than stock.(I had just put on a cheap autozone tailpipe since the rest of the exhaust was new) Six months later that tailpipe was half rotten and the rear hanger cracked off it so I bought a dynomax mandrel bent tailpipe... A bit pricey IMO at about 100 bucks it made a big difference in the way my jeep sounds and I felt improvement on the butt dyno. Just sayyin if your going throght the trouble of putting on a good muffler the tailpipe has alot to do with the sound as well and its a good time to replace it.

 

For two years I have been running a glass pack, and it finally drove me nuts. Damn thing sounded like a Cessna (read: small aircraft) on take off. The jeep is down at the shop today getting a new Cherry Bomb muffler, their version of a high performance muffler. I will neither confirm nor deny the existence of a cat on my Off Road Jeep.
Happy Wheelin'

 

Magna Flow, Super 44 w/ stock pipe and sounds pretty mean...

 

I went with a Magnaflow muffler.. I felt some power increase, but it may have been because of the CAI I put on around the same time.

 

I have a 95 with the 2.5. I have magnaflow from the cat back. Sounds decent. My neighbor has a 94 with 4.0 and the same exhaust. His is rather loud