Engineered to Perform — Built to Last.
The J’S Racing Radiator Hose Kit is designed to deliver superior coolant flow and reliability for the Honda Civic Type-R FL5. Developed in Japan by J’S Racing, this high-performance silicone hose set replaces the factory rubber hoses to ensure optimal temperature control under intense driving and track conditions.
High-Temperature Resistant Silicone
Constructed using multi-layer reinforced silicone that withstands temperatures up to 220°C, preventing swelling, cracking, and deterioration.
Enhanced Cooling Efficiency
Smooth inner surface promotes faster coolant circulation, reducing the risk of heat soak and maintaining consistent engine temperature.
Perfect OEM Fitment
Direct replacement for the factory radiator hoses — no modification required.
Vibrant J’S Racing Signature Design
Available in J’S Racing Blue or Red, adding an aggressive and premium touch to your engine bay.
Track-Tested Durability
Proven on J’S Racing demo cars and endurance circuits across Japan — ideal for both street performance and hardcore motorsport use.
Honda Civic Type-R FL5 (2023+)
Engine Code: K20C1
Factory rubber hoses weaken and expand under high heat and pressure, reducing cooling efficiency.
The J’S Racing Silicone Hose Kit maintains consistent pressure, prevents coolant loss, and keeps your engine performing at its best — even in extreme track sessions.
Pair it with J’S Racing Radiator Cap and PRL Motorsports Expansion Tank for a complete cooling system upgrade.