RCM Cylinder 4 Cooling Mod Kit - Street Spec 53540-S04-0135 Our thermostatic valve is bi-directional

Our thermostatic valve is bi-directional

Motorsport features - antilag

you can rest assured that your Honda B-Series engine is well-equipped to deliver optimal performance

F20C & F22C

these plugs are a only suitable for wide track Hawkeye models from 2006 onwards

RCM Cylinder 4 Cooling Mod Kit - Street Spec 53540-S04-0135 Our thermostatic valve is bi-directionalCylinder 4 cooling has long been a known issue on the EJ Family of Subaru engines. The nature of the water passageways around this area means a lack of cooling can lead to an increase in the temperatures around this cylinder. RCM's cost effective solution to this problem lies in our easy to fit Street Spec Cooling kit. Billet fittings are fixed in place onto quality coolant hose with genuine Subaru water hose clamps, which you simply fit into the