Differential temperature kit, utilizes the reliable PT-100 fluid temperature sensor, 4m patch cable, and your choice of a weld-in bung or drain plug (M22 for most BMWs) for installation.
Can be used with AiM loggers (MXL, Evo, MXL2, MXS, MXG, etc) to activate differential coolers for worry-free operation in the harshest of racing conditions.