Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) - 311-05-7380 fits_1998-2004`Renault`Clio HKS SPF CT9A EVO7/CU2W 4G63

HKS SPF CT9A EVO7/CU2W 4G63

CSF wanted to ensure the best possible performance while ensuring the cooler was as durable as possible

The latest CNC precision robotic manufacturing techniques are used to ensure that the exhaust kit's direct-fit design bolts on easily to enable hassle-free installation

BRExhaust Direct-Fit Replacement Exhaust Kit 106-0212 features durable Aluminized Steel construction and is covered by a 2 year warranty

Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) - 311-05-7380 fits_1998-2004`Renault`Clio HKS SPF CT9A EVO7/CU2W 4G63Skunk2 is proud to introduce its Pro Series XP (Extra Pressure) Racing Valve Spring Kits for the Honda K series i VTEC engines. Each kit includes Skunk2's high quality race proven dual valve springs that are the result of nearly two decades of racing and engine building experience. 'XP' features a higher seat pressure for turbocharged and extreme high RPM motors. This spring has a seat pressure of 100lbs @ 1. 600 in. while keeping the coil bind height