while the locking collar design allows for quick spring changes

This means that OEM wheels can not be used

Can also be used in Type 5 BOV's as they share a common thread size

\nFPR10 Fuel Pressure Regulator Suit -10AN (Purple) TS-0404-1043

Clutch Kit - Xtreme Performance Race Sprung Ceramic 930Nm KCY25002-1R Anti-theft Lug Nuts while the locking collar designXtreme Performance Extra Heavy Duty Sprung Ceramic 1R Recommended for: Motorsport Applications 1R kits feature a sprung ceramic friction disc, but with even greater clamping force pressure plate for higher torque capacity. These kits are designed specifically for motorsport applications such as circuit, rally, drifting and drag racing. Specifications: Torque capacity 930Nm Clamp load Increased over standard Sprung Ceramic Friction Disc Extra Heavy