StopTech Sport Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers. This Front Left Slotted Sport Rotor features a proprietary cryogenic treatment that aligns the molecular structure of the steel, significantly increasing resistance to thermal fatigue. The slotted design helps wipe away debris, improves initial bite, and reduces brake fade. Finished with a black e-coating for superior corrosion protection on non-friction surfaces. This part is a single rotor (Front Left). Part Number: 126.40028CSL. Components: 1 x StopTech Cryo-Slotted Brake Rotor (126.40028CSL).