APR MS100092 - Valve Springs/Seats/Retainers - Set of 40

APR - MS100092

APR Valve Springs/Seats/Retainers - Set of 40

Valve Spring Kit; 4140 Heat-Treated Chrome Molly Steel Spring Seats w/Black Oxide Coating; 6AL4V American Titanium Retainers; 29 Grams Per Spring; Set Of 40; 4 lbs.;

The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer than the high performance OEM Golf R setup and is proven to eliminate the OEM valve train's weakest link. We call it Performance Without Compromise!

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