Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) 00 impreza FIT: BMW F80 M3/ F83

FIT: BMW F80 M3/ F83 M4 15+ Model

Damping Levels 32 Levels Height Adjustment Yes Spring Rate(Front) 8 kg/mm (448 lbs/inch) Spring Rate(Rear) 6 kg/mm (336 lbs/inch) Spring Length(Front) 160 mm Spring Length(Rear) 165 mm Camber Plate(Front) Yes

to reduce resistance after the motor you must obtain a more efficient exhaust system such as our 4-1 Header and then ultimately the Cat-Back System

BMW X5 E53 00-06

Improve Exhaust Efficiency

Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs) 00 impreza FIT: BMW F80 M3/ F83Skunk2 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