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de-cat pipe??
Posted:
Wed Feb 08, 2012 7:38 pmby mattm328i
hi guys. next week im buying a twin exit sports backbox for my 328i, ive also got hold of a straight through custom de-cat pipe off my mates 325i. once the backbox is fitted im in 2 minds about the de-cat pipe!! will i notice that much difference in performance?? do they sound terrible once fitted?? any previous experiences from anyone please as i obviously dont want it to sound crap or go through the hassle of fitting it if its not worth it. many thanks
Re: de-cat pipe??
Posted:
Fri Apr 06, 2012 1:57 pmby Ant Man
from what i heard the de-cat make a "tinging" sound when accelerating hard..
i would personally would go for high flow cats instead.
Re: de-cat pipe??
Posted:
Wed May 30, 2012 2:41 pmby THE ONE & ONLY BMW
adding a de-cat pipe will make it loud if that's what you like, but the back box will make it quiter, personally i like the rumble sound. you could just remove the cat from the original exhaust system and replace the back box with the one you have bought.