Thermostats

First rule of thumb, excess heat kills engines and power. GrimmSpeed is on your side with our new Thermostat. Our thermostat will make an immediate and direct impact on your engine running temps. The...

 HKS Lowtemp Thermostat is available as a stock replacement item.This product is a built-in part of the adapter thermo included in HKS Oil Cooler Kit R Type.

The Mishimoto Racing Thermostat will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and...