Subaru Impreza WRX STI (GR) 2008–2014 Performance Parts & Upgrades

The Subaru Impreza WRX STI hatch (GR) was sold new in Australia from 2008 to 2014, with the 2.5L EJ257 turbo flat-four and all-wheel drive. It shares its platform with the GV STI sedan and the GH WRX, so many parts fit all three. This page lists the parts we stock for the GR STI, from the COBB Accessport, intakes and intercoolers, KORSH and COBB exhausts and Perrin and GrimmSpeed parts to HARDRACE suspension, Paragon, Alcon and Brembo brakes and GSC Power-Division and Manley engine parts.

Shop by Vehicle
Popular upgrades for the GR STI
  • Tuning and intake: the COBB Accessport V3 (Australian spec), COBB MAP and flex fuel sensors, and COBB, Perrin, Process West and aFe intakes.
  • Turbo and exhaust: COBB, Perrin and Process West intercoolers, Turbosmart and GFB blow-off valves, and KORSH, COBB, Borla, REMARK and Tomei exhausts.
  • Suspension: HARDRACE and COBB sway bars, end links, toe arms and bushings, plus Perrin and COBB driveline and transmission mount bushings.
  • Shifters: COBB drivetrain packages and GFB, Perrin and GrimmSpeed short shifters and bushings.
  • Brakes: Paragon, Alcon, Brembo and AP Racing big brake kits and Frenkit caliper rebuild kits.
  • Engine and fuel: GSC Power-Division and Supertech valvetrain, Manley rods and pistons, and COBB and Radium fuel rails and lines.
Choosing the Right Part
  • Hatch or sedan: the GR hatch and GV sedan share most parts, but aero and some exhaust parts differ. Check the chassis code in the title.
  • STI or WRX: the STI has a different engine and gearbox to the GH WRX, so engine, turbo and driveline parts may not swap between them.
  • Model year: some aero parts are made for 2008-2010 or 2011-2014 cars only. Check the years in the title.
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. Intake, exhaust, fuel and boost upgrades need a tune.

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

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Supertech Intake Valves 32mm – Subaru EJ20/EJ25 - Chicane Australia
Sale price$375.00
In Stock at Supplier
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Manley Sport Compact H-Beam connecting rods, set of 4 with box (product illustration)
Sale price$2,215.00
In Stock at Supplier
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CP Pistons forged pistons
Sale price$1,799.00
Available to Order
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CP Pistons forged pistons
Sale price$1,799.00
Available to Order
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CP Pistons forged pistons
Sale priceFrom $1,639.00
Out of Stock at Supplier
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GSC Power-Division Valve Keeper Set – Subaru EJ20/EJ25 - Chicane Australia
GSC Power-Division Valve Stem Seals – Subaru EJ20/EJ25 - Chicane Australia
GSC Power-Division Traditional Exhaust Valve Guide – Subaru EJ20/EJ25 - Chicane Australia
GSC Power-Division Traditional Intake Valve Guide – Subaru EJ20/EJ25 - Chicane Australia
GSC Power-Division Exhaust Valve – Subaru EJ20/EJ25 - Chicane Australia
GSC Power-Division Intake Valve – Subaru EJ20/EJ25 - Chicane Australia
APR Carbon Wind Splitter with Rods – Subaru Impreza STI 2008-2010 - Chicane Australia
APR Carbon Formula GT3 Mirror/Black – Subaru Impreza WRX/STI 2008-2014 - Chicane Australia APR Carbon Formula GT3 Mirror/Black – Subaru Impreza WRX/STI 2008-2014 - Chicane Australia
APR Carbon Brake Rotor Backing Plate with Hose – Subaru STI 2008-2014 - Chicane Australia
APR Carbon Brake Cooling Plates – Subaru STI 2008-2014 - Chicane Australia
APR GTC-200 60.5″ Carbon Adjustable Wing – Subaru STI 2011–2014 - Chicane Australia APR GTC-200 60.5″ Carbon Adjustable Wing – Subaru STI 2011–2014 - Chicane Australia
APR Carbon Wind Splitter w/ Rods – Subaru WRX/STI 2011–2014 - Chicane Australia
Subaru STI EJ207 2.0L JDM RA Spec OEM Shortblock – WRX / STI - Chicane Australia
Sale price$3,399.00
Available to Order
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Titan 7 T-S5 forged split 5-spoke wheel in Satin Titanium, 18x9.5 +40 5x114.3 Titan 7 T-S5 forged split 5-spoke wheel in Techna Bronze, 18x9.5 +40 5x114.3
King Racing Main Bearing Set – Coated for Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia King Racing Main Bearing Set – Coated for Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia
King Racing Connecting Rod Bearing Set – Coated for Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia King Racing Connecting Rod Bearing Set – Coated for Subaru EJ20 / EJ22 / EJ25 (Incl. Turbo) - Chicane Australia
Radium Engineering fuel filter mount – Subaru WRX / STI (GR / GV / VA) – bracket, filter clamp and hardware Radium Engineering fuel filter mount and lines installed under a Subaru WRX / STI (GR / GV / VA)
Radium Engineering fuel line retaining kit – Subaru WRX / STI (GR / GV / VA) – clamps, cable ties and hardware Radium Engineering fuel lines retained under a Subaru WRX / STI (GR / GV / VA)
Radium Engineering fuel plumbing kit – Subaru WRX / STI (GR / GV / VA) – hoses, filter, brackets and fittings Radium Engineering fuel plumbing kit lines installed under a Subaru WRX / STI (GR / GV / VA)
Radium Engineering fuel pump hanger – Subaru WRX / STI (GR / GV / VA) – kit contents, Walbro GSS342 or AEM 50-1200 option Radium Engineering fuel pump hanger – Subaru WRX / STI (GR / GV / VA) – kit contents, Walbro F90000267/274/285 option
Radium 20-0171 22mm Subaru injector seat, green anodised Radium 22mm injector seats fitted in a Subaru TGV housing with a top feed fuel rail
Radium Engineering intake manifold gasket – Subaru WRX / STI (EJ20 / EJ25)
Radium Engineering parallel fuel rail plumbing kit – Subaru WRX / STI (EJ20 / EJ25) – hose, regulator, gauge and fittings Radium Engineering parallel fuel rail plumbing fitted to a Subaru EJ intake manifold with regulator and filter