Koyorad Performance Radiator: Subaru Impreza WRX / STI GDA / GDB / GDF / GGA 2002-2007
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Description
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
| Part Number | VH091672 / KV091672R |
| Core Thickness | 36mm |
| Core Dimensions (H x W) | 340 x 686/701mm |
| Tube Pitch | 43/43 x 713mm |
| Inlet / Outlet | 38mm top and bottom |
| Construction | All Aluminium, Nocolok Brazed, Heliarc Welded |
| OEM Numbers | 45111 FE101 / 45111 FE102 |
Fitment
| Year | Chassis | Submodel | Trans |
|---|---|---|---|
| 2002-2005 | GDA Sedan | WRX EJ205 2.0T AWD 168kW | 4AT |
| 2002-2005 | GDA Sedan | WRX EJ205 2.0T AWD 168kW | 5MT |
| 2006-2007 | GDA Sedan | WRX EJ255 2.5T AWD 169kW | 4AT |
| 2006-2007 | GDA Sedan | WRX EJ255 2.5T AWD 169kW | 5MT |
| 2005 | GDA Sedan | WRX WRP10 EJ205 2.0T AWD 175kW | 5MT |
| 2002-2005 | GDB Sedan | WRX STI EJ207 2.0T AWD 206kW | 6MT |
| 2006-2007 | GDF Sedan | WRX STI EJ257 2.5T AWD 206kW | 6MT |
| 2002-2005 | GGA Wagon | WRX EJ205 2.0T AWD 168kW | 4AT |
| 2002-2005 | GGA Wagon | WRX EJ205 2.0T AWD 168kW | 5MT |
| 2006-2007 | GGA Wagon | WRX EJ255 2.5T AWD 169kW | 4AT |
| 2006-2007 | GGA Wagon | WRX EJ255 2.5T AWD 169kW | 5MT |
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.