Koyorad Performance Radiator: Subaru Impreza WRX / STI GDA / GDB / GDF / GGA 2002-2007

Koyo Performance Radiator – Subaru Impreza WRX / STI GDA / GDB / GDF / GGA 2002–2007

Application: Subaru Impreza WRX / WRX STI | GDA / GDB / GDF / GGA | EJ205 / EJ207 / EJ255 / EJ257 Turbo Petrol AWD | 4AT / 5MT / 6MT

Part Number: VH091672 / KV091672R

The GD-series Impreza WRX and STI are among the most popular and enduring performance platforms in Australia. Whether it's a street build, a rally car, or a track weapon, keeping coolant temperatures stable is fundamental to getting the most out of these engines under sustained load.

Koyorad's all-aluminium radiator is a direct bolt-in performance upgrade across the GDA, GDB, GDF, and GGA Impreza platform. Nocolok furnace brazed, precision TIG welded by hand, and triple pressure tested — retains all OEM fan shroud mounts and stock hose connections with no modifications required.

Why Koyorad?

• Precise Tube & Fin Alignment — Optimal coolant flow and maximum heat transfer efficiency.
• Nocolok Furnace Brazing — All components bonded as one unit for vibration and debris resistance.
• Billet Filler Neck — Precision-machined for strength, durability, and a reliable seal.
• OE-Specific Mounting — Retains factory fan shroud, hose positions, and mounting pins.
• Hand-Crafted Heliarc Welds — Individually welded for the strongest possible aluminium-to-aluminium bond.

Specifications

Fitment

Sold individually. Lead times may apply — contact us at Coore for availability and shipping estimates.

Coore Performance and Aftermarket is an Authorised Australian Distributor of Koyorad Performance Radiators.