BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post

OrangeCrush · 05-20-2013, 02:51 PM

I thought Harold confirmed that the 1M had a different downpipe than the 135 and that it was more free flowing which is why DP wasn't a requirement for one of the GIAC stage tunes.

05-20-2013, 02:51 PM	#11
OrangeCrush Lieutenant Colonel 1236 Rep 1,963 Posts Drives: VO 1M #513/740 Join Date: May 2012 Location: USA iTrader: (0)	I thought Harold confirmed that the 1M had a different downpipe than the 135 and that it was more free flowing which is why DP wasn't a requirement for one of the GIAC stage tunes.
	Appreciate 0 Quote