The Mishimoto racing thermostat for the 350Z 03-06 will promote greater cooling efficiency throughout your engine ! Once the engine is fully warmed up the Mishimoto racing thermostat will open up at a lower temperature than standard thermostats, allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures  !

-

Direct bolt on

Opens at 62°C vs 76°C

Mishimoto lifetime warranty