ISR Performance Silicone Radiator Hose Kit - Scion FR-S / Subaru BRZ - Blue

The ISR Performance blue silicone radiator hose kit for the Scion FR-S and Subaru BRZ replaces the factory rubber radiator hoses on the FA20-powered twins with silicone pieces from ISR's coolant hose line. They are built to handle a higher range of heat and coolant pressure than OEM-style hoses and bring a bright blue accent to an otherwise plain engine bay.

Benefits

• Silicone is much stronger than the factory rubber, so the hoses do not expand under pressure
• Rated for higher coolant temperatures, useful on a boosted or track-driven FR-S or BRZ
• Stays supple over time instead of hardening
• Blue finish, with red also available

Fits

Scion FR-S and Subaru BRZ.

Installation

Drain the cooling system, fit the hoses with new clamps, then refill and bleed. The FA20 can hold air in the system after a hose change, so run the engine with the heater on and top up as the level drops. The ISR aluminum radiator for the FR-S and BRZ is the matching upgrade if you want to replace the whole cooling path at once, and the clamps are worth a second look after a few heat cycles.

All ISR Performance products are designed for off-road use only.