2015-2021 STI Cooling

Add some flair to the engine bay of your 2015+ Subaru WRX or STI with the Mishimoto Aluminum Radiator Stay Set. These radiator stays will fit perfe...

Add some flair to the engine bay of your 2015+ Subaru WRX or STI with the Mishimoto Aluminum Radiator Stay Set. These radiator stays will fit perfe...

This CSF 1-Row 31mm High-Performance Aluminum Radiator is specifically designed for use with manual transmission vehicles. CSF radiators are expert...

Experience greater cooling efficiency with the CSF 1-Row 31mm High-Performance Aluminum Radiator. Enhanced with CSF's innovative “B-Tube” technolog...

Equip your 2008-2021 WRX/STI with CSF's 2-Row 42mm High-Performance Aluminum Radiator. CSF manufactures the most advanced and efficient radiator co...

Get that plastic blob of an overflow tank out of your engine bay. Stock plastic tanks are prone to failure due to repeated hot and cold cycles, and...

Get that plastic blob of an overflow tank out of your engine bay. Stock plastic tanks are prone to failure due to repeated hot and cold cycles, and...

The Subaru WRX STI provides a great balance of power, handling, and reliability. As with any vehicle, controlling fluid temperatures will ensure co...

Free up some engine bay space with the Mishimoto Subaru WRX/STI Plug-N-Play Aluminum Fan Shroud Kit! This kit bolts directly to your stock or Mishi...

The Gates water pumps are brand new (not remanufactured)designed to be long lasting and efficient.-The shaft and hub are precisely ground to exactl...

The Mishimoto performance aluminum radiator for the WRX and STI is designed and engineered to maximize cooling efficiency by up to 30%, boost en...

The CSF Racing Radiator is a super-durable all aluminum radiator designed to replace your factory radiator to improve the overall cooling efficien...

The Mishimoto racing thermostat will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly ...