Subaru WRX STI (VA) 2014–2021 Performance Parts & Upgrades

The Subaru WRX STI (VA) was sold in Australia from 2014 to 2021, with the 2.5L EJ257 turbocharged flat-four, a six-speed manual and all-wheel drive. It shares its body and much of its chassis with the WRX (VA), but the engine, gearbox and driveline are different. This page lists the parts we stock for the VA STI, including COBB Accessports, intercoolers and exhausts, Perrin and GrimmSpeed engine parts, HARDRACE suspension, APR carbon aero, GSC Power-Division and Manley engine internals, KORSH exhausts and Alcon and Paragon brakes.

Shop by Vehicle
Popular upgrades for the VA STI
  • Tuning and fuel: COBB Accessport V3 in Australian spec, flex fuel kits, MAP sensors, fuel rail line kits and fuel pressure regulators.
  • Intake and turbo: COBB and aFe intakes, Perrin intake tubes and bypass valves, COBB front mount intercoolers, and GFB and Turbosmart blow-off valves.
  • Exhaust: COBB, KORSH and AWE cat-backs and exhaust packages, KORSH downpipes and Perrin axle-backs.
  • Suspension: AST coilovers, COBB adjustable sway bars, alignment and roll centre kits, plus HARDRACE and SPL arms and bushings.
  • Brakes: Alcon front big brake kits, Paragon rotors and Frenkit caliper rebuild kits.
  • Engine and aero: Manley and CP pistons, ACL bearings, GSC valvetrain parts, ARP studs and APR carbon wings, canards and lips.
Choosing the Right Part
  • STI or WRX: the VA WRX uses the FA20 engine, so engine, intake, turbo and exhaust parts made for the STI's EJ257 won't fit it. Many suspension and aero parts are shared.
  • Pre-facelift or facelift: some aero parts, such as APR's front air dam and canards, are made for 2015-2017 bumpers only, so check the years in the title.
  • Wheel fitment: the VA STI uses 5x114.3 hubs, so check the stud pattern on wheel spacers and wheels.
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. Intake, turbo and fuel upgrades need a tune to suit; ask us if you're unsure.

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

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COBB isolator bushing – Subaru turbo models – bolt, EPDM bushing and aluminium sleeve COBB isolator bushing – Subaru turbo models – titanium grey sleeve with C logos
COBB ST-01 wheel – Subaru WRX and STI – blue wheel, face view COBB ST-01 wheel – Subaru WRX and STI – blue wheel, three-quarter view
COBB 4 bar MAP sensor kit – Subaru WRX STI cast manifold – sensor, adapter, sealant and hardware COBB 4 bar MAP sensor kit – Subaru WRX STI cast manifold – billet adapter with NPT port
COBB silicone radiator hoses – Subaru WRX STI – black upper and lower hoses with four clamps
PERRIN pitch stop mount – Subaru WRX / WRX STI (GD–VA) – Street Series in red, angled view PERRIN pitch stop mount – Subaru WRX / WRX STI (GD–VA) – Race Series in red, angled view
COBB camber adjustable rear lower control arms – Subaru WRX, STI, BRZ and 86 – pair with bolts and hardware COBB camber adjustable rear lower control arms – Subaru WRX, STI, BRZ and 86 – arm side profile
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
COBB Titan7 T-R10 wheel – 18x9.5 Cyber Gold – set of four, studio shot COBB Titan7 T-R10 wheel – 18x9.5 Cyber Gold – face-on view
COBB SF intake and airbox – Subaru WRX STI VA – full kit laid out with airbox, filter and duct COBB SF airbox – Subaru WRX STI VA – installed in a red STI engine bay
Process West Billet Fuel Rails - Subaru WRX/STI EJ20/EJ25 Process West Billet Fuel Rails - Subaru WRX/STI EJ20/EJ25 - Image 2
Process West Boost Solenoid Cover - Subaru WRX STI (GRF/GVF) Process West Boost Solenoid Cover - Subaru WRX STI (GRF/GVF) - Image 2
COBB number plate relocation mount – Subaru WRX, BRZ and 86 – kit contents laid out COBB number plate relocation mount – Subaru WRX, BRZ and 86 – black aluminium backing plate, front view
COBB NexGen flex fuel upgrade kit – Subaru WRX/STI – harness, module, bracket and screws laid out COBB NexGen flex fuel upgrade kit – Subaru WRX/STI – harness connectors close-up
COBB stainless up pipe – Subaru WRX and STI – 51mm up pipe, front three-quarter view COBB stainless up pipe – Subaru WRX and STI – up pipe, rear three-quarter view
COBB shift linkage bushings – Subaru 5MT and 6MT – sleeves, Delrin inserts, bolt, nut and grease laid out COBB shift linkage bushings – Subaru 5MT and 6MT – pair of Delrin bushing inserts
COBB driveline bushing kit – Subaru WRX/STI – diff inserts, pinion bushing, transmission isolators and grease
COBB shifter pivot bushings – Subaru 5MT and 6MT – pins, Delrin bushings, sleeves and grease laid out COBB shifter pivot bushings – Subaru 5MT and 6MT – Delrin bushing and sleeve close-up
COBB x Korsh Stage 1+ Package - Subaru WRX (VAG) / STI (VAB) - Titanium Catback COBB x Korsh Stage 1+ Package - Subaru WRX (VAG) / STI (VAB) - Titanium Catback - Image 2
COBB x KORSH Stage 1+ Package - Subaru WRX (VAG) / STI (VAB) COBB x KORSH Stage 1+ Package - Subaru WRX (VAG) / STI (VAB) - Image 2
COBB lift kit – Subaru WRX/STI VA – front and rear spacers, sway bar links and hardware laid out COBB lift kit – Subaru WRX/STI VA – front strut spacer with side and direction markings
Sale price$1,015.00
Out of Stock at Supplier
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COBB NexGen flex fuel ethanol sensor kit – Subaru WRX STI – module and harness installed in engine bay
COBB 5-pin fuel pressure sensor kit – Subaru WRX STI – sensor, adapter, harness and cable ties COBB 5-pin fuel pressure sensor kit – Subaru WRX STI – plug-and-play harness with connectors
COBB alignment package – Subaru WRX/STI VA – front alloy arms, roll centre kit, rear arms and hardware laid out
Sale price$3,425.00
In Stock at Supplier
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COBB sway bar package – Subaru WRX STI VA – front and rear bars, end links, reinforcement brace and hardware laid out
Sale price$2,265.00
In Stock at Supplier
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COBB fuel pressure regulator kit – Subaru WRX STI – regulator and sheathed fuel lines COBB fuel pressure regulator kit – Subaru WRX STI – regulator and quick-connect close-up
CSF 2-row aluminium radiator – Subaru WRX/STI – front three-quarter view of the core CSF 2-row aluminium radiator – Subaru WRX/STI – rear view showing the lower outlets and mounts
COBB stainless cat-back exhaust – Subaru WRX/STI sedan – full kit with tips and hardware laid out COBB stainless cat-back exhaust – Subaru WRX/STI sedan – muffler with dual tips, side view
COBB cat-back exhaust hardware kit – gaskets, band clamps, bolts and nuts laid out