ar design: 135i / 335i modified CDV - improve your shifting for $20!!
A must have for any E8X or E9X manual transmission!
The ar design Clutch Valve replaces your factory CDV with a professionally modified valve. The result is quicker shifts, longer clutch life, and improved 0-60 and 1/4mile times! Installs quickly and is visually identical to the factory valve. Fits BMW 128i/135i/328i/335i that are equipped with manual transmissions.