ugh pop and rasp

[Mattyferr]

I just put a magnaflow 2.5" catback on my 94 3.4 a4 firebird 2 couple months ago and i get really nasty pop and rasp even when i rev it low like 2500-3000k and i was wonderin if a highflow cat or sutmhin along those lines would help. Any suggestions would be helpful

[95Batmobile]

maybe a high flow cat and 3" instead of 2.5 :D

[memphis_raines]

My flowmaster is doing that too, but there is something inside the muffler that has come loose. You can hear it rattling around even at idle, then it gets even worse on hard acceleration. I'm getting rid of the Flowmaster and getting a Hooker....lol

[Jaymatic]

Will going from 2.5" to 3" really get rid of rasp and pops?

[Mattyferr]

i agree with jaymatic im not saying your wrong but i dont really think a bigger system will make it go away. plus im only 17 and my exhaust cost me close to 400 so im not really ready to give up on it that quick yet but that nks for the advice

[Mattyferr]

hey sorry for bein a p.i.t.a. but i was thinkin about getin headers in july and iw as wonderin if anyone has them and if they like the sound. Im more intersted in them ben loud as hell and soundin good the the whole power thing

[Leviathan1994]

its the cat, its no the cat-back. mine was doing the same. i bought a catco 3" high flow and it's fine now.

[L32Projekt]

I'm pretty sure that it's the cat, as I've got the same problem with my 3.4l and a stock cat. I assume you (mattyferr) also have a stock cat. I'd love to purchase a high flow cat to see if that corrects the problem (I believe Leviathan, but want an excuse to get a new part for my car. [img]graemlins/naughty.gif[/img] ) but don't have the cash lately. Oh well, life sucks... sometimes...
Me-> [img]graemlins/twak.gif[/img] <-Finances

[Leviathan1994]

more money is always nice :( . (the stock cats on our 3.4's don't seem to hold up well...)

[Leviathan1994]

my cat was so bad that it would back up the exhaust flow because it was in pieces. (and rattled extremely loud also). killed my already bad gas mileage, so i would change it asap

[BradC]

3 inch cat will get rid of the rasp

[Mattyferr]

hey leviathan can you send me some pics of your car i noticed that you had 16" 077 and i was thinking of doing the same thing or getting headers.
Mattyferr@yahoo.com

[Leviathan1994]

sure, i wanna take some better ones soon tho, the ones i have now were taken with a worthless digicam.

[Leviathan1994]

i'll send you some tomorrow