Originally Posted by XwChriswX

I guess I need to link my convo that's been goin on on the GTM Exhaust thread...

I'm planning to TT the Z and since the best TT kit atm is the GTM one I was talking to people about how I should go with the GTM 3" kit or not, and someone said that F.I. can make a 3" as well... My goal is 600+ WHP. So my question was should I go ahead and get the 3" so that's one less thing I have to buy later, or get the 2.5" and enjoy that until I get the TT and get a 3" exhaust at the same time...