BMW 3-Series (E90 E92) Forum - View Single Post - :: BMR Autowerkes :: BMW Performance Exhausts!!!

insane79 · 01-24-2013, 07:29 PM

saw the video, is it normal for the bmw PE exhaust to crackle & back fire so much?
i thought it happens when the engine is running rich..

Thanks..

01-24-2013, 07:29 PM	#34
insane79 Lieutenant Drives: E90 lci Join Date: Apr 2012 Location: Earth Posts: 582 iTrader: (0)	saw the video, is it normal for the bmw PE exhaust to crackle & back fire so much? i thought it happens when the engine is running rich.. Thanks..