Tomei OIL THERMOSTAT KILLER 4G63 EVO4-9 / 4B11 EVO10

One of the seldom-weak points of the 4G63 is the rise in oil temperature. It is seen more often in circuit driving. The EVO uses a thermo switch that will work when the temperature gets around 85ｰC (approx 185ｰF). Yet when the oil temp is low, it will restrict the oil flow to the oil cooler constantly regardless of the temperature. Still it is easy to revert back to the OEM switch for winter use to prevent over cooling.

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