I am trying to figure out exactly what exhaust setup i want and its pretty overwhelming. I have a 2008 2.2 automatic, and all i have done is an intake. i have been thinking about buying the bad mab header so i can just bolt it up to my stock exhaust, but as i keep reading alot of guys are saying start with the exhaust first so i am in a bind. so i guess my question is i i were to get just a header is there going to evan be a performance difference with stock exhaust. and for the cat-backs a majority of people have the magnaflow cat but i hate how raspy it is, does anyone know of a really deep drone cat-back?