StopTech Sport Slotted Cryo brake rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. These rotors undergo a specialized cryogenic treatment that realigns the molecular structure of the iron to provide increased resistance to thermal fatigue and significantly extended service life. The unique vacuum-cast 'Power Slot' design helps evacuate gasses, dust, and debris, ensuring consistent friction and improved wet weather performance. Finished with a black e-coating on the hubs and vanes for maximum corrosion protection. This product contains: 1x Left Front Slotted Cryo Brake Rotor (P/N 126.33144CSL). Specifications: 296mm Diameter, 28mm Thickness, 5-Lug Bolt Pattern.