Part Number: gsc5743

Description: Spring/Retainer Kit; Single Spring; Titanium Retainer

Seat Pressure: 75 @ Seat / 195 @ 11mm

Fitment: 02-07 Subaru WRX & STI

Details:

• Includes 16 cylindrical valve springs

• Includes 16 titanium retainers that are CNC machined

• Nano peened and batched according to seat pressure within spec

• Max RPM: 8,200 RPM

• Maz boost: 32 psi