Thread: upgrading performance

3" is a waste of money past the downpipe. all you need is 2.5". hell, i run a stock catback because its nice and quiet.

Originally Posted by Bio248

3" is a waste of money past the downpipe. all you need is 2.5". hell, i run a stock catback because its nice and quiet.

Actually - that is true - you can run 2.5" and it will be more than adequate. I'm not sure what the diff is between 2.5 and 3" (cost).

-Swash

Originally Posted by Swash

Actually - that is true - you can run 2.5" and it will be more than adequate. I'm not sure what the diff is between 2.5 and 3" (cost).

-Swash

Calvin made mine Shannon...3" all the way from the downpipe back for $250

Originally Posted by bluegtp91

Calvin made mine Shannon...3" all the way from the downpipe back for $250

G&C's is the hook up. He did both of my Spintechs and modified my GTO DP a bit - for $50.

-Swash