Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set (Dual Springs) 2024-bmw-m440i-xdrive-gran-coupe-esi9618710 Reflects heat from air tubes

Reflects heat from air tubes Promotes cooler air charge for added power Installs & removes in seconds for show or go Hook & Loop fastening system for easy installation Fits up to 4 in

6mm Bore Silver Wheel

NRG Short Hub Adapter 12+ Scion FRS / Subaru BRZ

NPT gauge port

which literally opens and closes the door on Phantom flow control technology

Skunk2 Pro Series Honda/Acura B-Series VTEC XP Valve Spring Set (Dual Springs) 2024-bmw-m440i-xdrive-gran-coupe-esi9618710 Reflects heat from air tubesSkunk2 is proud to introduce its Pro Series XP (Extra Pressure) Racing Valve Spring Kits for the Honda B series 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 93lbs @ 1. 320 in. while keeping the coil bind height