Cant wait to get these, its going to be hard to wait a month. I think I will be the first car in Ireland to have a set! Does anyone know what kind of gains one can expect with headers , bearing in mind that I am running a twin exhaust with a cat replacemnt pipe, and a induction kit with a pro-flow75maff? I am being pesimistic and guessing around 10-ish, maybe a bit less, but I am hearing at much at 30???
