Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) Shift Knobs 3L/8/4L V10 6

3L/8/4L V10 6

calibration uploading and datalogging

tuned and dyno-tested to fit specific models

Also included is a 4AN manifold to run inline with your nitrous feedline

Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) Shift Knobs 3L/8/4L V10 6Skunk2 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