Ease of Fitment Guide
• RCM Thermostat opening starts at 70oC (158°F) and is fully open at 90oC.
• OEM Opening starts at 90oC (194°F) and is fully open at 95oC.
• Allows coolant to flow through your engine at a much earlier time than would usually be expected.
• Reduces coolant and engine temperatures earlier.
• Great addition to any performance radiator.
• Improved part reliability when compared to other manufacturers.
All Subaru EJ20, EJ22, Ej25 engines.