Cusco External Reservoir Tank Kit, Radiator Coolant, High Pressure Radiator Cap for BRZ/86/FRS

This Cusco External Reservoir Tank Kit includes a high-pressure radiator cap designed specifically for the BRZ, 86, and FRS. The kit's radiator cap is rated to hold 1.3 kg/cm², which is higher than the stock cap. This increased pressure rating allows the coolant to reach a higher boiling point, helping to keep engine temperatures more stable, especially under demanding driving conditions. The external reservoir tank works in conjunction with the cap to manage coolant expansion and contraction, ensuring the system remains full and properly pressurized.

The components in this kit are well-built to handle the increased thermal loads common in performance driving. The high-pressure cap is made from durable materials designed for longevity, and the reservoir tank is constructed to integrate cleanly into the engine bay. By managing coolant expansion and maintaining optimal system pressure, this kit helps prevent overheating and ensures consistent engine performance. It's a solid option for drivers looking to improve their cooling system's reliability.