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, ZPP+ZCV, HK, Apps; Akra CF+Valve control, MadDad mids, K&N, Forge FMIC, P3gauge, EuroTails, Tint, CF Mirrors+Spoiler+Roof+RevoZ diffuser, 10mm H&R, IND grills+gills, xCDV, LUX AE
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Interior, Premium+Titanium Package, EPL Tune, Stasis Ohlins MS coilovers, Milltek valved exhaust+DownPipes, Alcon BBK, Tint, ADR V1, Lidatek, Lamin-X, Strasse Forged SM7 3-piece concave wheels, 275/30/19 PSSs, Euro flat-bottom steering wheel, JHM SSK