Check the item description to confirm this fits your vehicle

Mishimoto MMTS-WRX-01 Coolant Thermostat

AU $109.95
Free 4 day postage
Get it between Thu, 4 Apr and Mon, 8 Apr
Returns
Accepted within 30 days. Buyer pays return postage.
Condition:
Brand New
The Mishimoto racing thermostat for the 2001+ Subaru Impreza WRX/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.