The V3 direct drive 2 piece floating discs from Performance Friction are deigned to replace the OEM discs on high performance cars. They are a direct replacement and fit with the original calipers so they are far more cost effective than a complete brake kit. The floating design helps eliminate warping and judder under heavy braking resulting in more consistent braking with better control. Helps eliminate warping and brake judder for improved braking effort and feelDirect replacement for original discs. Fits with standard calipersHigh carbon alloy discs for excellent durability and high temperature capabilities100% silent operation, no rattles.!Ideal for track cars or high performance road useThe V3 direct drive floating disc assemblies allow for radial and axial expansion of the rotor without being constrained by the hub. This helps prevent warping when the discs are exposed to high heat cycles. The V3 discs are retained on the mounting hat (bell) via a 'two turn' retaining ring syste