VAC Motorsports Oil Diverter Valve, BMW S50B32/S54

Put An End To Those High Track Day Oil Temperatures.

All S54 motors came from the factory with an oil filter housing meant to limit the flow of oil to the cooler. BMW did this intentionally so that when your engine Is cold the closed thermostat allows the oil to heat up quicker. While BMW may have had good intentions, this causes overheating issues in almost all S54 motors. Even at operating temps this thermostat is extremely restrictive and will not open all the way! This has caused headaches for many  S54 owners.

Our kit gives offers you a quick and simple solution to delete your oil cooler’s thermostat, and install only takes about 5-10 minutes once you’ve removed the housing. Once our kit has replaced your factory thermostat your oil can efficiently flow to the cooler without any restrictions. This will bring your oil temperatures down 30+ degrees (using a factory cooling configuration) helping you keep your E46 M3 cool and on the track!

This kit will also work with the Euro-Spec E36 M3 (S50B30 / S50B32)

This kit works with:
E46 M3 | 2000 – 2006

Z3 M | 2001 - 2002

Z4 M | 2006 - 2008 

E36 M3 (Euro / S50) | 1992 – 1999

- Recommended for track use only.