M5POST - BMW M5 Forum - View Single Post - XS-Power Downpipes

94jedi · 02-22-2020, 08:57 PM

Yep, tune is needed; otherwise you'll get a CEL for the primary O2 sensor.

02-22-2020, 08:57 PM	#32
94jedi Major 832 Rep 1,254 Posts Drives: 2009 e92 M3 Join Date: Oct 2014 Location: United States iTrader: (0)	Yep, tune is needed; otherwise you'll get a CEL for the primary O2 sensor. __________________ 2009 E92 M3 build thread: https://www.m3post.com/forums/showthread.php?t=1754875 Follow me on IG - www.instagram.com/the_driven_enthusiast
	Appreciate 0 Quote