Please give me your opinion
I have an 04 40th anniversary gt conv. and i put 40 series flowmasters on my car and it already has stock H pipe so if i order a whole new catback system should i order a H pipe or x pipe and will it have cats on it. if not will it void my warranty. If u had my car what would u do to the exhaust and other miscellaneous things to improve the HP
I have an 04 40th anniversary gt conv. and i put 40 series flowmasters on my car and it already has stock H pipe so if i order a whole new catback system should i order a H pipe or x pipe and will it have cats on it. if not will it void my warranty. If u had my car what would u do to the exhaust and other miscellaneous things to improve the HP