Subaru Impreza WRX GD Performance Parts & Upgrades

The Subaru Impreza WRX (GD sedan and GG wagon) was sold new in Australia from late 2000 to 2007, with a turbocharged boxer four and all-wheel drive. Early cars use the 2.0L EJ205 and the last models the 2.5L EJ255. Many parts are shared with the GD STI. This page lists the parts we stock for the GD WRX, from COBB, Perrin and GrimmSpeed intake, turbo and exhaust parts to HARDRACE bushes and mounts, Process West intercoolers, Torque Solution shifter bushings and Turbosmart and GFB blow off valves.

Shop by Vehicle
Popular upgrades for the GD WRX
  • Intake and turbo: COBB, Perrin and Process West intakes, turbo heat shields, boost solenoids, and GFB and Turbosmart blow off valves.
  • Intercooling and cooling: COBB and Process West front mount intercoolers, COBB CSF and KOYORAD radiators, and Mishimoto and Perrin oil coolers.
  • Exhaust: COBB and Borla cat-backs, a Borla header, KORSH downpipes, and COBB and GrimmSpeed up pipes.
  • Suspension and bushes: AST coilovers and springs, HARDRACE and Perrin bushings, end links and engine mounts, and Perrin and GrimmSpeed wheel spacers.
  • Driveline and shifter: COBB shifters, Torque Solution shifter bushings, and Drive Shaft Shop axles and driveshafts.
  • Engine: Cometic head gaskets, Supertech and GSC valvetrain, Manley rods and ACL bearings.
Choosing the Right Part
  • Front end style: the GD was facelifted twice, for 2003 and 2006. Process West intercoolers come in Bugeye, Blobeye and Hawkeye versions.
  • EJ20 or EJ25: 2.0L and 2.5L cars need different head gaskets, pistons and some turbo parts. Check your engine before ordering.
  • WRX or STI: the STI has a 6-speed gearbox and different brakes. Driveline and shifter parts are often listed for one model only.
  • Sedan or wagon: most parts fit both, but check the title for springs and exhausts.
Installation

Have a qualified workshop fit suspension, brake, fuel and engine parts. Get a wheel alignment after any suspension change, and bleed and road-test the brakes after brake work. Fuel and engine upgrades usually need a tune to suit, so ask us if you're unsure.

Need help choosing? Contact our team at sales@chicaneaustralia.com.au.

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PERRIN front end links – Subaru WRX/WRX STI (GD–GV) – pair of black end links PERRIN front end links – Subaru WRX/WRX STI (GD–GV) – next to the factory end link
DSS 1-Piece Aluminium Driveshaft - Subaru WRX (GDA/GGA) - Automatic/6-Speed R160 Rear Conversion
DSS 1-Piece Carbon Fibre Driveshaft - Subaru WRX (GDA/GGA) - 5-Speed R160 Rear
DSS 1-Piece Aluminium Driveshaft - Subaru WRX (GDA/GGA) - 5-Speed R160 Rear
DSS 1-Piece Carbon Fiber Driveshaft - Subaru WRX (GDA/GGA) - R160 Rear
DSS Pro-Level Rear Axle/Hub Kit - Subaru Impreza WRX (GC8/GDB) - R180 Diff
DSS 750HP Level 5 Front Axle - Subaru WRX (GDA/GGA) MY04-07 / WRX STI (GD)
GSC Power-Division Valve Spring Seats - Subaru WRX/STI (GC8/GDA/GGA/GDB/GRF/GVF/VAB) - Set of 16
PERRIN bypass valve – Subaru WRX / WRX STI (GD–VA) – red, flow control dial front PERRIN bypass valve – Subaru WRX / WRX STI (GD–VA) – red, side angle
PERRIN radiator shroud – Subaru WRX (GD / GG) / WRX STI (GD) – red, angled view of logo end PERRIN radiator shroud – Subaru WRX (GD / GG) / WRX STI (GD) – red, angled view from other end
Sale priceFrom $100.00
In Stock at Supplier
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PERRIN short ram intake – Subaru WRX/STI (GD/GG) – red finish with filter PERRIN short ram intake – Subaru WRX/STI (GD/GG) – red inlet tube close-up
Sale priceFrom $460.00
Out of Stock at Supplier
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PERRIN 25mm wheel spacers 5x100 56.1mm CB – pair with PERRIN logo PERRIN 25mm wheel spacers 5x100 56.1mm CB – pair with studs
PERRIN throttle body coupler – Subaru WRX / WRX STI (GD / GG) / Forester XT (SG) – red silicone PERRIN throttle body coupler – Subaru WRX / WRX STI (GD / GG) / Forester XT (SG) – black silicone
PERRIN turbo inlet hose – Subaru WRX (GD) / WRX STI (GD–VA) / Forester XT (SG) – red, logo side PERRIN turbo inlet hose – Subaru WRX (GD) / WRX STI (GD–VA) / Forester XT (SG) – red, turbo end
PERRIN clutch delay valve delete – Subaru WRX / WRX STI – red, P logo face PERRIN clutch delay valve delete – Subaru WRX / WRX STI – red, thread side
Process West Engine Pulley Garnish - Subaru WRX (GDA/GGA/GE8/GH8) STI (GDB/GRF/GVF) Process West Engine Pulley Garnish - Subaru WRX (GDA/GGA/GE8/GH8) STI (GDB/GRF/GVF) - Image 2
Process West Billet TGV Delete Kit - Subaru WRX (GDA/GGA) / STI (GDB/GRF/GVF) Process West Billet TGV Delete Kit - Subaru WRX (GDA/GGA) / STI (GDB/GRF/GVF) - Image 2
Process West Billet Fuel Rails - Subaru WRX/STI EJ20/EJ25 Process West Billet Fuel Rails - Subaru WRX/STI EJ20/EJ25 - Image 2
KOYORAD racing radiator – angled view with side tanks and filler neck (product illustration) KOYORAD racing radiator – dimension drawing and fitment table (product illustration)
Mishimoto Oil Cooler Kit - Subaru WRX/STi (GDB) - Image 2 Mishimoto Oil Cooler Kit - Subaru WRX/STi (GDB) - Image 4
Sale price$989.95
Only 3 at Supplier
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Mishimoto Oil Cooler Kit - Subaru WRX (GD) MY06-07 - 19-Row Mishimoto Oil Cooler Kit - Subaru WRX (GD) MY06-07 - 19-Row - Image 3
Sale price$1,059.95
Out of Stock at Supplier
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Mishimoto Thermostatic Oil Cooler Kit - Subaru WRX/STI (GD/GG) Mishimoto Thermostatic Oil Cooler Kit - Subaru WRX/STI (GD/GG) - Image 2
Sale price$1,119.95
Only 3 at Supplier
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Mishimoto Thermostatic Oil Cooler Kit - Subaru WRX (GDB) MY06-07 Mishimoto Thermostatic Oil Cooler Kit - Subaru WRX (GDB) MY06-07 - Image 2
Sale price$1,199.95
Out of Stock at Supplier
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Mishimoto Silicone Radiator Hose Kit - Subaru WRX/STI (GD/GDB) Mishimoto Silicone Radiator Hose Kit - Subaru WRX/STI (GD/GDB) - Image 2
Sale priceFrom $269.95
In Stock at Supplier
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GFB Lightweight Underdrive 2 Pulley Kit - Subaru WRX (GD/GG) STI (GDB) MY01-02 GFB Lightweight Underdrive 2 Pulley Kit - Subaru WRX (GD/GG) STI (GDB) MY01-02 - Image 2
Sale price$269.10 Regular price$299.00
Available to Order
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GFB Belt Kit - Pulley Kit 2001 - 5PK836/4PK850
GFB Adjustable Short Throw Shifter Kit - Subaru WRX/STI (GC8/GDA/GDB) / Liberty/B4 (BE/BH)
GFB Replacement Inlet Flange Adaptor - Subaru WRX/STI (GD/GG) STI (GRB/VA) Forester XT (SG) MY06-08 GFB Replacement Inlet Flange Adaptor - Subaru WRX/STI (GD/GG) STI (GRB/VA) Forester XT (SG) MY06-08 - Image 2