We use cookies to make your experience better. To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
The Cusco Brake Cylinder Stopper is designed to stablize the brake master cylinder. Upon hard braking, the sheet metal of the firewall to which the brake master cylinder is attached to, flexes immensely from hydraulic pressure and applied human pedal force. Works effectively with factory brake systems and or upgraded units. This modification will effectively result with improved brake feel and quicker pedal response.
This works well paired with Stainless Steel Brake Lines.
NOTE: the car pictured above is right-hand drive, and that your part will be the same item designed for the left hand drive vehicles.
| Fitment Years | Subaru WRX | Subaru STI |
|---|---|---|
| 2002 | ✓ | |
| 2003 | ✓ | |
| 2004 | ✓ | ✓ |
| 2005 | ✓ | ✓ |
| 2006 | ✓ | ✓ |
| 2007 | ✓ | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.
| SKU | cus666 561 ALHD |
|---|---|
| Manufacturer's Part Number | 666 561 ALHD |
| Brand | CUSCO |
| Product Type | Brakes |
| Brakes | Master Cylinder Brace |






