The Mishimoto racing thermostat for the 2001+ Subaru Impreza WRX and STI will promote greater cooling efficiency throughout your engine.

The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and upgraded turbo applications.

Once the engine is fully warmed up the Mishimoto racing thermostat will open up at a lower temperature than standard thermostats, also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.

The Mishimoto Racing Thermostat opens at 60* C, where the OEM Thermostat opens at 76.5* C.

The Mishimoto part number for this thermostat is MMTS-WRX-01.

This part fits the 2002+ WRX and STI.

Also Fits:
92-97 Subaru SVX
90-05 Subaru Legacy
01-08 Subaru Outback (all sub models)
98-08 Subaru Forester (all sub models)
03-06 Subaru Baja (all sub models)
06-07 Subaru B9 Tribeca (all sub models)