GMPP Installed!
? i have gmpp performance cat-back, notin else. well, stage 2 and intake, but nontheless
fair warning, unless you have well above stg2 hp numbers, it is too big. youll have rasp in the rpm band. and only someone who knows nothing about cars would put a 3" on, thats just dumb. 500hp cars have 3", not 250hp cars.
oh, and as for corsa and borla, i wasnt looking to spend ~700 bucks. plus they were a little too loud.
fair warning, unless you have well above stg2 hp numbers, it is too big. youll have rasp in the rpm band. and only someone who knows nothing about cars would put a 3" on, thats just dumb. 500hp cars have 3", not 250hp cars.
oh, and as for corsa and borla, i wasnt looking to spend ~700 bucks. plus they were a little too loud.
New Member
Joined: 08-12-05
Posts: 179
Likes: 0
From: Danbury, Ct
2.25 exhaust???
A four cylinder motor has a unique characteristic to it that is very different from an eight cylinder. Sometimes it has been proven that on a smaller displacement motor some back pressure is required. Most of those honda junk, with the fart can mufflers probly lost power with there huge exhaust. Be smart don't be a retard. What aftermarket company can spend as much in R&D as GM? I would rather buy parts right from GM then some company that could be run out of my garage!!!
Senior Member
Joined: 09-18-07
Posts: 1,304
Likes: 0
From: Wappingers Falls NY
I got my gmp catback it sounds the nicest, plain and simple.
It's not a ******* race car, if I wanted to nitpick about 'zomgyouget2morewhpwith6"catback' I wouldn't have bought a cobalt.
It's not a ******* race car, if I wanted to nitpick about 'zomgyouget2morewhpwith6"catback' I wouldn't have bought a cobalt.
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