Audi AEB, VW EA888, BMW N54, VR6 3.2L 6mm Single Groove Valve Locks KPR-6S/7

Supertech KPR-6S/7 valve locks for 6mm single-groove valves - proven in fast-road, track-day and high-boost builds across the UK. Fit Audi AEB, VW EA888, BMW N54, VR6 3.2L/3.6L, Opel Z20LET and Renault F4RT engines without machining.

• Sold individually - two required per valve
• Direct-fit; no valve stem modification needed
• Hardened alloy construction, tighter tolerances than OEM
• Stocked in the UK - ships same day