The Mishimoto racing thermostat for the 1989-1998 Nissan 240SX 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. Thermostat activates at 60º C vs. the OEM 76.5º C Fits the following vehicles: Infiniti G20 91-96 Nissan 200sx 95-98 Nissan Altima 93-01 Nissan Frontier 98-02 Nissan NX 91-93 Nissan Sentra 91-01 Nissan Stanza 90-92 Nissan Xterra 00-04 Nissan Pick-up (4cyl) 95-97