Subaru Impreza WRX (GC) 1994–2000 Performance Parts & Upgrades

The first Subaru Impreza WRX was sold new in Australia from 1994 to 2000 as the GC sedan and GF hatch, and many more reached Australia as Japanese imports. It uses the 2.0L EJ20 turbo flat-four with all-wheel drive. Many chassis parts carry over to the GD WRX that followed. This page lists the parts we stock for the GC WRX, from HARDRACE arms, sway bars and bushings to GFB blow-off valves and shifters, GrimmSpeed and Got It Rex parts, GSC Power-Division and Manley engine parts and Drive Shaft Shop axles.

Shop by Vehicle
Popular upgrades for the GC WRX
  • Suspension: HARDRACE sway bars, camber, toe and caster arms, stabiliser links and hardened strut mounts.
  • Bushings and mounts: HARDRACE control arm bushes and engine mounts to refresh a tired chassis.
  • Turbo and boost: GFB blow-off valves and wastegate actuators, Turbosmart parts and GrimmSpeed heat shields.
  • Engine: GSC Power-Division valvetrain and camshafts, Supertech valves, Manley and Nitto rods, ACL and King bearings and ARP case bolts for EJ20 builds.
  • Driveline and cooling: Drive Shaft Shop axles and carbon driveshafts, GFB short shifters, and Got It Rex radiator hoses and cooling plates, and a Perrin coolant tank.
  • Brakes: Alcon, AP Racing, Brembo and Paragon big brake kits and Paragon rear rotors.
Choosing the Right Part
  • AU-delivered or JDM import: Japanese cars and STI versions can differ in turbo, intercooler and brake setup. Check what your car has before ordering.
  • Model year: some parts, such as GFB blow-off valves, are made for certain model years only. Check the years in the title.
  • GC or GD: many HARDRACE parts fit both, but some suit the GC only. Check the chassis codes in the title.
  • Age and past repairs: most GC WRXs have had parts changed by earlier owners. Check what's fitted before you order.
Installation

Have a qualified workshop fit suspension, brake, engine and driveline parts. Get a wheel alignment after any suspension change, and bleed and road-test the brakes after brake work. Boost and engine changes need a tune to suit.

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

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ARP 2000 Head Stud Kit - Subaru EJ20 / EJ25 DOHC - WRX / STI / Forester / Liberty GT
King Racing Connecting Rod Bearing Set – Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia King Racing Connecting Rod Bearing Set – Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia
King Racing Main Bearing Set – Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia King Racing Main Bearing Set – Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia
NGK Iridium Spark Plugs Heat Range #7 Subaru EJ20 WRX/STI / VW Audi 2.0 TSI TFSI EA113 EA888 Gen 1-2 - Chicane Australia NGK Iridium Spark Plugs Heat Range #7 Subaru EJ20 WRX/STI / VW Audi 2.0 TSI TFSI EA113 EA888 Gen 1-2 - Chicane Australia
Process West Top Mount Intercooler – Subaru GC8 WRX/STI (99–00) – Black - Chicane Australia
MAP DCCD Centre Differential Controller – Subaru WRX/STI MAP DCCD Centre Differential Controller – Subaru WRX/STI
ARP Custom Age 625+ Head Stud Kit - Subaru EJ20 / EJ25 DOHC - WRX / STI / Forester / Liberty GT
ACL Race Conrod Bearings Set – Subaru EJ20/EJ22/EJ25 (52mm Journal) - Chicane Australia ACL Race Conrod Bearings Set – Subaru EJ20/EJ22/EJ25 (52mm Journal) - Chicane Australia
Sale price$85.00
Out of Stock at Supplier
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ACL Race Main Bearings Set – Subaru EJ20/EJ22/EJ25 (Thrust Position 5) - Chicane Australia ACL Race Main Bearings Set – Subaru EJ20/EJ22/EJ25 (Thrust Position 5) - Chicane Australia
CP Pistons Ring Set – EJ255 / EJ257 Engine – 100mm Bore (Single Piston)
Manley Piston Set – Subaru WRX STI EJ257 2.5L (99.50mm Bore / -14.00cc / 1.130in CH) Manley Piston Set – Subaru WRX STI EJ257 2.5L (99.50mm Bore / -14.00cc / 1.130in CH)
Process West Cold Air Intake – Subaru WRX/STI 1999–2000 - Chicane Australia
Subaru OEM Turbo Inlet Pipe – Impreza WRX STI GC8/GF8/GM8 (1998–2000) - Chicane Australia Subaru OEM Turbo Inlet Pipe – Impreza WRX STI GC8/GF8/GM8 (1998–2000) - Chicane Australia
HKS Fine Tune Timing Belt with purple back face and black teeth (product illustration) HKS Fine Tune Timing Belt fitted with HKS purple adjustable cam pulleys on an engine (product illustration)
Manley Sport Compact H-Beam connecting rods, set of 4 with box (product illustration)
Sale priceFrom $1,190.00
In Stock at Supplier
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Alcon brake components including calipers and rotors on a black background Alcon 6-piston caliper with 2-piece rotors and kit hardware (product illustration)
Sale priceFrom $4,390.00
Available to Order
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NRG SRK-100H short hub in black anodised aluminium with horn wire – angled view NRG SRK-100H short hub – wheel-side face with 6x70mm bolt holes and horn contact
HARDRACE Rear Adjustable Arm - Subaru Impreza WRX (GC/GF/GM/GD/GG) / Impreza WRX STI (GC/GF/GM/GD/GG) - Pillow Ball HARDRACE Rear Adjustable Arm - Subaru Impreza WRX (GC/GF/GM/GD/GG) / Impreza WRX STI (GC/GF/GM/GD/GG) - Pillow Ball - Image 3
Fluidampr Steel Internally Balanced Damper - Subaru EJ20/25 Fluidampr Steel Internally Balanced Damper - Subaru EJ20/25 - Image 2
AVO Silicon Inlet - Subaru WRX/STI (GC8) MY99-00 AVO Silicon Inlet - Subaru WRX/STI (GC8) MY99-00 - Image 2
Sale price$385.00
Available to Order
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GFB Mach 2 Recirculating Blow Off Valve - Subaru WRX/STI (GC8) MY99-00 / Forester GT (SF) / Forester XT (SG) MY03-05 / Liberty B4 (BE/BH) GFB Mach 2 Recirculating Blow Off Valve - Subaru WRX/STI (GC8) MY99-00 / Forester GT (SF) / Forester XT (SG) MY03-05 / Liberty B4 (BE/BH) - Image 2
Manley Turbo Tuff I-Beam Connecting Rod Set - Subaru WRX/STI (EJ20/EJ25) - 4340 Steel +2mm 1000+HP - Image 2 Manley Turbo Tuff I-Beam Connecting Rod Set - Subaru WRX/STI (EJ20/EJ25) - 4340 Steel +2mm 1000+HP - Image 3
KOYORAD racing radiator – Subaru Impreza WRX / WRX STI (GC8 / GF8) – front view with KOYORAD logo KOYORAD racing radiator – Subaru Impreza WRX / WRX STI (GC8 / GF8) – rear view of core and side tanks
Process West Billet Intake Manifold - Subaru WRX / STI / Forester XT / Liberty GT (EJ20/EJ25) Process West Billet Intake Manifold - Subaru WRX / STI / Forester XT / Liberty GT (EJ20/EJ25)
Paragon 4-Piston Front Big Brake Kit (product illustration) Paragon 4-Piston Front Big Brake Kit (product illustration)
Sale priceFrom $3,875.00
Available to Order
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Paragon 6-Piston Front Big Brake Kit (product illustration) Paragon 6-Piston Front Big Brake Kit (product illustration)
Sale priceFrom $3,975.00
Available to Order
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ARP Case Bolt Kit - Subaru EJ20 / EJ25 - WRX / STI (GC / GD / GR / GV / VA) / Forester (SF / SG / SH) / Liberty GT (BL / BP)
Got It Rex GIR BOV Block-Off Shim - Subaru WRX / STI