Originally Posted by jjtgiants

I just think there are so many other companies that make exhaust that can give you sweet sound and much better performance. Again, that's just my opinion. There are a lot of guys that run flowmaster and love them so it's personal preference. Also, the Mach 1's have a pretty damn good free flowing stock exhaust system. Greg hit the nail on the head with Borla....the only bad thing is it's expensive as hell compared to the rest of the catback systems.