HJQF MS100258 APR Valve Spring Kit (1 Set) - Fits select 2005-2027 Audi, Volkswagen applications

Fits various VW, Audi, Seat, Skoda, Cupura, Bentley, Lamborghini, and Porsche vehicles

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 EA113.K04 (MK6 R) setup and is proven to eliminate the OEM valve train's weakest link. We call it Performance Without Compromise!

Features and Benefits: 19% weight reduction over 2.0T EA113.K04 springs (MK6 R); 20% stiffness increase over 2.0T EA113.K04 Springs (MK6 R); 29 grams per spring; 2 grams per retainer; 4140 heat-treated chrome molly steel spring seats with black oxide coating; 6AL4V American titanium retainers; 71% weight reduction over 2.0T EA113.K04 retainers (MK6 R); ASTM A877A OTSC round wire steel springs; Compatible with OEM valves; Eradicates valve float issues (MK6 EA888.1); Increase valvetrain control; Plug and Play; Spring seats included to protects against aluminum erosion in the head; Supports higher revving application; Weight saving beehive spring design