RCM Low Temperature Thermostat - Subaru - 70C (158°F) - EJ20 EJ25 WRX STI - 1708 930 Series The Controller capitalizes on our

The Controller capitalizes on our existing brushless technology by reducing fuel flow during low engine demand and decreasing an already low current draw

installation is pretty simple

and easiest to use ECU upgrade solution for your Honda

Front Spring Rate (Tender / Main): 246 lb

precisely machine-bent with large radius bends for maximum flow and perfect fitment every time

RCM Low Temperature Thermostat - Subaru - 70C (158°F) - EJ20 EJ25 WRX STI - 1708 930 Series The Controller capitalizes on ourThe Roger Clark Motorsport thermostat is designed not only to improve reliability (thanks to its superior construction and RCM's strict quality control inspection process) but also to provide an earlier start in your engine's cooling process. With a low temp thermostat in place your engine coolant is allowed to circulate around the engine much earlier which allows overall engine temperatures to be reduced sooner than they would normally occur.