Subaru Impreza WRX GD Performance Parts & Upgrades

• Subaru Impreza WRX STI (GD): the STI version of the same body
• Subaru Impreza WRX (GC)
• Subaru Impreza WRX (GH)
• Subaru Impreza WRX STI (GR)
• Subaru WRX (VA)
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• 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.

• 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.

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.