so i have a 6 year warranty on my cobalt ss 6 year 100000 miles on it but i want aftermarket stuff to make it fast n keep my warranty should i purchase the gmpp i hear it doesnt do much hp at all so is it worth it to invest

 

Going aftermarket only voids the warranty on the exhaust components. That shouldn't be a problem though, since if it breaks, you still have your stock parts. And exhaust won't harm your engine, or transmission or anything.

 

whats wrong w/ the gmpp?

 

Ive heard that the GMPP Cat-back dont make as much power as some others..but they sounds great and weigh alot less than the stock exhaust.. no Cat-back will void your warranty so dont worry about that.. The GMPP air intake makes good power gains and looks nice also...

 

cool any suggestions then i was think like corsa touring and injen air intake and not sure about the headers