Clutch Delay Valve (CDV) Modification, Zeckhausen Racing
More feel when shifting - the clutch delay valve!
CDV Delete/Replacement DIY - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
Genuine BMW - Clutch Delay Valve - 21526764872 | eBay
Clutch Delay Valve Removal DIY - BMW M2 Forum
Bimmerforums - The Ultimate BMW Forum
BMW UUC CDV/Clutch Delay Valve Delete Kit UUC MotorWerks PEL UNLOCK1 PEL.UNLOCK1 PELUNLOCK1 | Pelican Parts