Originally Posted by Papethova
Ive personally tapped out the restriction in the CDV of the 1M. Its identical to the CDV in a 135.
FYI I have tapped out more than one 1M CDV so it isnt a lone data point in my experience.
+1, did tap out the CDV on my 135i and 1M, they are identical.
OP, if you don't want to do this yourself (even though it is 1 on the 10 scale of difficulty), you can "trade-in' yours here for a 'free' one:
2011 BMW E82 1///M: AW, all options; Renntech, Akrapovic, Forge, P3, RevoZ CF bits, many mods
1988 BMW E30 M3: Lachssilber on Silver, Dinan S14, 17' BBS rims, stock
2016 Porsche 981 GT4: Sapphire Blue, Factory bits, Xpel, stock
1998 Porsche 993 C4S: Zenith Blue, last aircooled widebody, Bilstein PSS10, Fister exhaust, mostly stock
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Bucket Interior, Premium+Titanium, many mods