StopTech Sport Drilled & Slotted Brake Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved stopping power and cooling compared to original rotors. This part includes: 1x Rear Left Brake Rotor (P/N 127.63064L). Key features: Cross-drilled and slotted for superior heat and gas dissipation, zinc coating for corrosion resistance, and high-quality metallurgy to prevent cracking. Perfect for performance street driving and autocross applications.