BMW 3-Series (E90 E92) Forum - View Single Post - candid review of bmw performance power kit for n55

gibumee · 08-02-2013, 02:21 PM

mileage seems same. i think it leaves the exhaust valves open but it def sounds louder and the burble in intoxicating. i think the sounds make the car feel faster

08-02-2013, 02:21 PM	#7
gibumee Private First Class 6 Rep 130 Posts Drives: 335i N55 PPK Join Date: Jun 2013 Location: Chicago, IL iTrader: (1)	mileage seems same. i think it leaves the exhaust valves open but it def sounds louder and the burble in intoxicating. i think the sounds make the car feel faster
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