Well I found a used set of the fabspeed cat back pipes.I installed myself fairly easy install perfect fit took about an hour but I have access to a lift. When I first started the car I heard a different exhaust sound BETTER it sounds nice. Then the Test drive . First thing I felt was the throttle response was way better more snappier response. Overall it was worth doing I paid 350$ for the pipes they were 8 months old still alot of bucks .