Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Thermostat Mishimoto Mazda RX-7 / 89-95 MMTS-RX7-89 Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Category: Racing Thermostats OEM Activation Temp C: 82°C Mishimoto Activation Temp C: 68°C Fits: Mazda RX-7 GXL 90 Mazda RX-7 U 90 Toyota 4Runner DLX 89 Toyota 4Runner SR5 88-95 Toyota Pickup 81-93 Toyota Pickup DLX 82-95 Toyota Pickup LN55 DLX 87 Toyota Pickup LN67 87 Toyota Pickup SHT BD DLX EXC 91-92 Toyota Pickup SR5 83-95 Toyota T100 93 Toyota T100 One-Ton 93 Toyota T100 SR5 93-94 The Mishimoto racing thermostat for the 1989-1995 Mazda RX-7 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 lower than OEM thermostats, allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.