BMW Motorsport 55 Degree Thermostat BMW E46 M3 S54 01-05
OEM BMW Motorsport Thermostat works well with any supercharger and for customers that track their E46 M3;s. Thermostat 65 deg. C. and includes an O-ring.
Fits:
E46 01-05 M3
Z3 01-02 M-Coupe/Roadster S54
E36 European M3 S50B30 and S50B32