Silicone Ancillary Coolant Set WRX 2008 - 2014 STI 2008 - 2021

The hoses Subaru should have used from the factory.

Fuji Racing’s ancillary coolant hose set replaces every soft coolant line in your bay with high-temp, pressure-rated silicone built to go the distance. Whether you’re daily driving, pushing hard on the track, or just tired of cracked rubber and surprise leaks—this kit fixes it all in one go.

Every hose is handmade using custom jigs, ensuring consistent fit and finish. Each line is reinforced, pressure-tested, and OAT coolant compatible, rated from -150°C to +230°C. It’s overbuilt, so you don’t have to think about it again.

🧪 Full silicone construction – Handles extreme temps and pressure
🔧 OEM fitment, no guesswork – Replace every hose with confidence
🧵 Jig-formed & hand-checked – Every hose meets Fuji’s exacting standards
🌡 OAT coolant safe – Future-proofed for modern Subaru cooling systems
📦 15-piece kit – Covers all major coolant and heater circuit hoses

Kit Contents:
• Heater Matrix Inlet + Outlet
• Header Tank to Radiator (x2)
• Header Tank to Water Crossover Pipe
• Header Tank to Turbo
• Oil Cooler (Modine) Hoses (x3)
• Pre-Heater Hoses (x2)
• Water Pump Hoses (x2)
• Expansion Tank Overflow Hoses (x2)

Built for those who don’t like doing the same job twice.
Install once. Trust it forever.