2007+ Audi R8 Single Valve Spring Kit by Supertech
Supertech Spring / Retainer kits are precision matched sets for a complete valvetrain overhaul. Developed for the performance enthusiast that wants the best the industry has to offer, Supertech Spring / Retainer kits are second to none in terms of performance, quality and value.
Features
- InnSpr.ID: EXHAUST
- Seat Pressure: 73 @ 37.40 ; 85 @36
- Open Pressure: 178 @ 10 ; 190 @10
- Max Lift: 11.00mm
- Coil Bind: 24.90mm
- Rate: 10.5
- Kit spring: SPR-A2416N
- Retainer: RET-A2416-N2
- InnSpr.OD: EXHAUST
- OutSpr.OD: 24.00mm
- OutSpr.ID: 16.50mm
Benefits
- Underwent a gas nitriding process before shot peening for improved fatigue life
