Okay, right now, i'm stuck on choosing the Y pipe with, or the Y pipe without the cat. The exhaust i've got is already raspy as it is. I want to know the Pros and Cons of adding the Y pipe and whether to keep or get rid of the Cat. i know there would be a good performance increase. And from what i also heard IIRC, there is a gain in gas mileage right? Cons is that it would get louder. We don't have emission laws, so removing the cat is not a problem. What do you guys suggest? Keep it stock.. get the y pipe (cat or no cat)??
