APR MS100089 - Valve Spring Retainer Kit

APR - MS100089

APR Valve Springs/Seats/Retainers - Set of 20

Valve Spring Retainer Kit; 20 pc. Set; Incl. Retainers/Spring Steats/Valve Float; 4140 Heat-treated; Works w/OEM Valves;

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!

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