Skunk2 XP Dual Valve Springs & TRC Titanium Retainers Kit K Series K20 K24 100LB

Skunk2 K-Series XP RACE Valve Springs with TRC Titanium Retainers. “XP” features a higher seat pressure for turbocharged and extreme high RPM motors. Seat Pressure: 100 lbs at 1.600. Open Pressure: 255 lbs at 1.100. Coil Bind: 0.890. Max Lift: 0.680. Manufactured exclusively from super-clean, chrome-silicone wire milled in Japan. Valvetrain stability in excess of […]