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Full Version: back pressure exhaust
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noticed on my car theres catt and 2 boxes thinking its too restricted
whats ur thoughts on back pressure
thinking of removing catt and centre box willl this increase noise
tia
(23-04-2013, 06:14 AM)pjb123 Wrote: [ -> ]noticed on my car theres catt and 2 boxes thinking its too restricted
whats ur thoughts on back pressure
thinking of removing catt and centre box willl this increase noise
tia

yes. less exhaust restriction also means the turbo spools up faster and you might even gain a few bhp