Ferrea Dual Valve Spring - 04-21 Subaru WRX STI EJ257 - Set of 16 - S10098 Push Lock Hose PSP-INR-250

PSP-INR-250

1993:Mercury:Villager:GS

All of these adjustments add up to a fully customizable short shifter solution all done from inside your car

and are designed to comply with muffler requirement rules at race tracks throughout North America

Includes a Mishimoto Magnetic Oil Drain Plug with high-quality dowty seal

Ferrea Dual Valve Spring - 04-21 Subaru WRX STI EJ257 - Set of 16 - S10098 Push Lock Hose PSP-INR-250The design and processes on these dual valve springs are optimized to reduce valvetrain harmonics and provide greater stability on high horsepower applications. We use high grade premium super clean PAC alloy materials and maintain tight tolerances for those unique aftermarket cylinder heads. Type Material Application: Dual Spring Special Alloy Turbo Endurance Racing Outside Diameter: 20. 8 mm 28 mm Inside Diameter: 16. 51 mm 20. 8 mm Seat Pressure: