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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Nitto EJ20 2.2L forged stroker pistons, set of four Nitto EJ series forged pistons, set of four (product illustration)
REMARK R1-Spec cat-back – Subaru Impreza WRX/STI GR hatch – stainless system laid out REMARK R1-Spec cat-back – Subaru WRX/STI GR hatch – stainless muffler and slant-cut tip
REMARK Sports Touring cat-back Impreza WRX/STI GR hatch – full system with polished quad tips REMARK Sports Touring cat-back Impreza WRX/STI GR hatch – full system with burnt quad tips
Injector Dynamics XDS fuel injectors – Subaru WRX / STI EJ, set of 4
Paragon 2-Piece Front Rotors – Subaru WRX STI RA-R / S207 / S208 (GDB/GRB/VAB) – 340 x 32mm Paragon 2-Piece Front Rotors – Subaru WRX STI RA-R / S207 / S208 (GDB/GRB/VAB) – 340 x 32mm – rotor angled view on white
Radium Engineering fuel pump hanger – Subaru WRX/STI / Forester XT / Liberty GT – kit contents Radium Engineering fuel pump hanger – Subaru WRX/STI / Forester XT / Liberty GT – hanger and wiring kit
Radium Engineering fuel rail kit – Subaru EJ20/EJ25 – PTFE hose, fittings, bracket and regulator Radium Engineering fuel rail kit – Subaru EJ20/EJ25 – kit contents laid out
Radium Engineering Dual Fluid Lock Catch Can Kit - Subaru WRX/STI (GDB/GRB/GVB/VA) - LHD
Radium Engineering transparent fuel pump access cover – Nissan 180SX/200SX/Silvia (S13) / Skyline (R32) option Radium Engineering transparent fuel pump access cover – Mazda RX-7 (FD) option
COBB cat-back exhaust hardware kit – Subaru WRX and STI hatch – six bolts, six nuts and two-bolt gasket
COBB front mount intercooler cold pipe kit – Subaru STI – black pipes, silicone elbows and clamps laid out
COBB Tuning Turbo-Back Exhaust with Korsh Downpipe - Subaru STI (GRB/GVB/VAB) / WRX (GR/GV) 11-14 COBB Tuning Turbo-Back Exhaust with Korsh Downpipe - Subaru STI (GRB/GVB/VAB) / WRX (GR/GV) 11-14 - Image 2
COBB Tuning Stage 1+ Package (Accessport & Cat-Back Exhaust) - Subaru WRX/STI (GR/GV) 11-14 - Australian Spec COBB Tuning Stage 1+ Package (Accessport & Cat-Back Exhaust) - Subaru WRX/STI (GR/GV) 11-14 - Australian Spec - Image 2
COBB front mount intercooler hot pipe kit – Subaru STI – black pipes, silicone elbows and clamps laid out
COBB SF intake hardware kit – two hose clamps, bolts, washers and hex key
COBB SF airbox hardware kit – hex key, bolts, flange nut and six rubber grommets COBB SF airbox hardware kit – current kit with hex key, bolts and flange nut
COBB Stage 1+ Drivetrain Package – Subaru STI 6-speed – shifter, bushings and tall weighted knob laid out COBB Stage 1+ Drivetrain Package – Subaru STI 6-speed – tall knob kit, second copy (product illustration)
COBB Stage 1+ Drivetrain Package – Subaru STI 6-speed – shifter, bushings and weighted knob laid out COBB Stage 1+ Drivetrain Package – Subaru STI 6-speed – kit laid out, second copy (product illustration)
COBB Stage 2+ Drivetrain Package – Subaru STI 6-speed – tall knob kit, Black / Black/Black option (product illustration) COBB Stage 2+ Drivetrain Package – Subaru STI 6-speed – tall knob kit, Black / Black/Red option (product illustration)
COBB 6-speed shift knob – black knob with black base, underside view COBB 6-speed shift knob – black knob with red base, underside view
COBB Stage 2+ Drivetrain Package – Subaru STI 6-speed – parts laid out, Black / Black/Black option (product illustration) COBB Stage 2+ Drivetrain Package – Subaru STI 6-speed – parts laid out, Black / Black/Red option (product illustration)
COBB 4 bar MAP sensor – stainless sensor body with flying lead and plug COBB 4 bar MAP sensor – kit contents with sensor, small tube and cable ties
COBB Tuning Fuel Rails/Line Kit Package - Subaru STI (GRB/GVB/VAB) COBB Tuning Fuel Rails/Line Kit Package - Subaru STI (GRB/GVB/VAB) - Image 2
COBB fuel pressure regulator kit – Subaru WRX STI – fuel lines, regulator bracket, fittings and cable ties
COBB Stage 1+ package – Subaru WRX/STI GE-GV – Accessport V3, SF intake and airbox COBB Stage 1+ package – Subaru WRX/STI GE-GV – Accessport and intake parts laid out
COBB throttle body coupler – Subaru WRX/STI – black silicone coupler with two clamps
COBB 6-speed shifter bushing pack – Subaru WRX STI – rear stay bushing, front bushings and sleeve COBB 6-speed shifter bushing pack – Subaru WRX STI – full pack with bolts (product illustration)
COBB Stage 2+ drivetrain package – Subaru WRX STI 6-speed – shifter, bushings, lockout pull and black knob COBB Stage 2+ drivetrain package – Subaru WRX STI 6-speed – shifter, bushings, lockout and black knob (2 of 16)