Cusco Brake Cylinder Stopper Subaru WRX / STI 2015-2021 | 6A1 561 ALHD Wheel Bolt Pattern_5x100 each providing over 1150 CFM

each providing over 1150 CFM of airflow

Part #: BC6518

Part #: SK-300BC

flexible yet durable urethane

Rear 0mm to -45mm (0

Cusco Brake Cylinder Stopper Subaru WRX / STI 2015-2021 | 6A1 561 ALHD Wheel Bolt Pattern_5x100 each providing over 1150 CFMPart #: 6A1 561 ALHD The Cusco Brake Cylinder Stopper (B. C. S.) for the Subaru WRX STI is a great way to increase pedal feel. Eliminate the unwanted flex of the brake master cylinder during hard stopping, due to firewall flex. The Cusco B. C. S. is coated blue and bolts on to pre existing holes, and is and easy install taking only minutes using normal hand tools. This has been specifically designed for Left Hand drive vehicles.