K20 K20Z1 Thermostat Housing Billet Cover K Series K Swap EG EK DC2 Civic Si CRX Best Sellers no cutting or ECU retune

no cutting or ECU retune required

By removing the delay valve found in many factory slave cylinders (such as those in K20Z1 and K20Z3-equipped models)

Smoked Lens with Ultra Bright LEDs

Universal Compatibility: Designed to fit various vehicles

Full-length height adjustment without affecting shock stroke

K20 K20Z1 Thermostat Housing Billet Cover K Series K Swap EG EK DC2 Civic Si CRX Best Sellers no cutting or ECU retuneApplication: Fits all K series engines Fits both K20 & K24 engines Welded 1. 25" Hose or 16AN Fitting Available. The Billet Thermostat Cover securely attaches to the OEM plastic housing by utilizing the original shoulder bolts, OEM thermostat, and OEM gasket. This compatibility extends to the K20A, K20A2, K20Z1, and any other K variants sharing the same housing. It was best retain the original thermostat within the cover was deliberate, as I believe