GSC POWER-DIVISION Beehive Valve Spring Kit [Coil Bind (in) 0.925 | Install Height (in) 1.415 | Seat Pressure (lbs) 101 | Open Pressure 224lbs@0.975 | Maximum Valve Lift (in) 0.440] (2017-2023 Audi R8 5.2L V10) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS