Collection: ISR Performance

ISR Performance is a motorsport-focused brake and suspension component manufacturer specializing in big brake kits, brake lines, coilover systems, and exhaust components for import performance vehicles. Their stainless steel braided brake lines replace factory rubber hoses to eliminate brake pedal expansion under hard braking, providing a firmer, more consistent pedal feel. ISR big brake kits upgrade factory calipers and rotors with larger, more capable hardware for improved heat capacity and stopping power — particularly valuable for track day use where factory brakes can fade under sustained hard braking.