Skunk2 Honda K20C1/K20C4 Ultra Valve Springs and Spring Base Kit (313-05-9100) 1567 Upon opening the box

Upon opening the box

This makes for a true plug-and-play installation that does not interfere with aftermarket performance aero modifications

Improves handing performance

Thermostatic Bypass Plate - Prevents Overcooling of Oil

Skunk2 Honda K20C1/K20C4 Ultra Valve Springs and Spring Base Kit (313-05-9100) 1567 Upon opening the boxThe Skunk2 Ultra Valve Springs and Spring Base Kit for Honda K20C1 K20C4 engines are designed for high performance applications that require upgraded valve springs to handle increased valve lift and higher engine speeds. The kit features specially engineered, ultra lightweight valve springs that are made from super clean chrome silicone wire, shot peened, and heat treated to maximize fatigue resistance and spring life. The valve springs' unique design