BC Racing BR Coilovers w/ Default Springs Extreme Low (10K Front / 10K Rear) - 2015-2021 Subaru WRX / STI PDM_accessory-belts Designed to increase coolant flow

Designed to increase coolant flow in the LH head to improve reliability by reducing detonation causing hot spots

Polyurethane replacement is the direct fix

2015-2021 STI

5" hose between FPR return and factory hard line

modified vehicles

BC Racing BR Coilovers w/ Default Springs Extreme Low (10K Front / 10K Rear) - 2015-2021 Subaru WRX / STI PDM_accessory-belts Designed to increase coolant flowPLEASE NOTE This is a special order item that is built to order direct with the manufacturer and carries a minimum 8 10 week build time subject to changes or delays per manufacturing timelines. Once you have placed an order successfully, it cannot be canceled or altered in any way. Please ensure you understand these terms and waiting period before purchasing.