Rogue Engineering Clutch Delay Valve

For those that are new to manual
transmissions, BMW installs what is know as a "lock valve" in
the clutch line to restrict fluid flow and slow down the clutch
engagement. This clutch delay valve (CDV) means longer shift
engagement time but also premature clutch wear for those driving their
cars enthusiastically.
The factory restriction reduces the
inside of the CDV to 1.5mm ID. Removing the restriction opens it up
to the 3.5mm ID. Our modified
CDV removes the restriction, removing the shifting engagement
"lag".
These fit the following models:
- 2006+ E9X 3-series (NOT
for M3)
- 2008+ E82/8 1-series (including 1 M
Coupe)
Includes one (1) CDV to install in one
vehicle..
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