The Mishimoto MMRAD‑STI‑08 performance aluminium radiator is compatible with Subaru WRX or STI (2008–2019) and is engineered to deliver reliable construction, advanced cooling, and standout engine bay visuals.
It features a robust all‑aluminium build with a core that provides up to 30% better cooling efficiency compared to OEM units, making this radiator essential for high‑performance driving, track use, or hot weather conditions.
Crafted from aircraft‑grade 100% brazed aluminium, it includes TIG‑welded end tanks and a sturdy magnetic drain plug to collect metallic debris.
A high‑pressure radiator cap allows coolant to flow more efficiently at higher boiling points, while the polished finish and clean welds enhance the look under your hood.
A thicker core increases cooling surface area and thermal mass, consistently maintaining coolant temperatures about 10 °F lower under demanding road or track conditions.
Upgrading to this radiator aligns with motorsport trends, helps minimise overheating risks, and contributes to long‑term engine longevity.
