StopTech Slotted Sport Brake Rotors are premium 1-piece replacement brake discs for factory brake systems. This specific part (126.33138SL) is the Front Left side rotor featuring a specialized directional slotting pattern that helps evacuate gases and brake dust, ensuring consistent friction and improved stopping power. The package contains: 1 x StopTech Slotted Rotor (Front Left) - Part Number: 126.33138SL. Key features include high-carbon metallurgy for reduced noise and increased crack resistance, as well as a black e-coat finish on the hubs and vanes for superior corrosion protection. Designed for spirited street driving and improved thermal management.