I see Cattman is now offering full exhaust system from the Y=pipe to the muffler. I know they're pretty good individual gains from the Y-pipe, b-pipe and cat., but does the whole system together add up to mor than the sum of the separate parts? Anyone know how much Hp gain can be expected from this system? What about noise level?

 

I do not have the Y-pipe, but I will certainly comment that the Random Cat, combined with their B-pipe and muffler sounds AWESOME. Not ricey or droning at all. It sounds better than most any V8 I know. It has a very deep, nice tone. Power feels good, but I haven't been to a dyno to tell you numbers.

 

I second that. I also have the CATTMAN cat-back exhaust system. It has a nice deep throaty tone to it. Still waiting on a CATTMAN Y-Pipe to be made for my car As for HP gains. My butt-dyno gives it a