Thread: 2007 GP GT Modded Vers GXP

tuned with a 3.5 pulley and zero knock i could deff see it happening.

good kill

Originally Posted by blowfishRus6

tuned with a 3.5 pulley and zero knock i could deff see it happening.

good kill

The next step is what other mods do I go forward with? I have 38,000 miles on my car and have the 100,000 GM ppower train warr. and I have a extended warranty. I was thinking of exhaust headers to be specfic but I think that would mess with my warranty.

Are the 2007 SC GT exhaust manifolds as restrictive as the the previous years? Can I benifet by doing a HF cat and DP. In other words what am I going to really gain and and how much by going with headers.

Also what other mods would be a good choice that would not include tearing into the engine (ie cam)

thanks