3" exhaust
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
3" exhaust
I'm planning on going to a full 3" exhust (Kooks 3" collector, 3" magnaflow x-pipe, into maganaflow mufflers) from the stock 2 1/2. Will this make the car much louder? 
I like the sound I have now (very civilized at cruise) but I have a crappy x-pipe, and wanted to change everything to get more flow.
I like the sound I have now (very civilized at cruise) but I have a crappy x-pipe, and wanted to change everything to get more flow.
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
YES! I have TPIS headers, and a Corsa Indy catback, it was fairly mellow with the stock 2 1/2" midpipes and cats with an x pipe. But, when I changed the mids to 3" no cat pipes, keeping the X, it got SERIOUSLY LOUD. Now, it did gain 14 HP and 12 ft/lbs of torque at the wheels, but be prepared for the noise. 
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
TPIS 2 1/2" long tubes, Random Tech High flow cat and x-pipe ( 3" ) and 3" straight pipe, no mufflers.
In the cabin at full throttle it is very loud, out side it is not too bad.
low cruze is ok, any moderal acceleration it does get noisy, but the very low back pressure does give a little more power.
In the cabin at full throttle it is very loud, out side it is not too bad.
low cruze is ok, any moderal acceleration it does get noisy, but the very low back pressure does give a little more power.
Thread Starter
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
Originally Posted by 6Speeder
YES! I have TPIS headers, and a Corsa Indy catback, it was fairly mellow with the stock 2 1/2" midpipes and cats with an x pipe. But, when I changed the mids to 3" no cat pipes, keeping the X, it got SERIOUSLY LOUD. Now, it did gain 14 HP and 12 ft/lbs of torque at the wheels, but be prepared for the noise.
