APR Valve Springs/Seats/Retainers – Set of 20

High performance, light-weight, upgraded valve spring system.

• Weight saving beehive spring design
• ASTM A877A OTSC round wire steel springs
• 6AL4V American titanium retainers
• Increase valve train control
• 4140 heat-treated chrome molly steel spring seats with black oxide coating
• 29 grams per spring
• 2 grams per retainer
• Compatible with OEM valves
• Spring seats included to protects against aluminum erosion in the head
• 71% weight reduction over OEM Golf R retainers
• 19% weight reduction over OEM Golf R springs
• 20% stiffness increase over OEM Golf R springs
• Eradicates TSI K04 “valve float” issues
• Supports higher revving application