Subaru WRX / STI (GE/GH/GV/GR)
Sedan and hatch. Custom dyno tuning w/ EcuTek, TGV deletes, and turbo upgrades for the 3rd-gen WRX & STI.
Got a different generation? See all WRX/STI generations
Packages
Performance packages
Parts, labour, and dyno tune included. No hidden costs.
RZ Stage 1
Custom build
Custom dyno tune w/ EcuTek on the factory ECU
Price on application
- Custom dyno tune w/ EcuTek
- Built from scratch on our Dynapack. No flash files
- Optimised for your fuel and engine condition
- Road tune & QC handover
Best for: Stock or lightly modded EJ owners wanting more from the factory ECU
RZ Stage 2
Custom build
Downpipe, intake, intercooler. Bolt-ons plus a proper supporting tune
Price on application
- Downpipe
- Cold air intake
- Top-mount intercooler upgrade
- Custom dyno tune w/ EcuTek
Best for: Owners ready for bolt-ons and the supporting tune to make them work
RZ Stage 3
Custom build
Headers, catback, and clutch on top of the Stage 2 setup
Price on application
- Downpipe
- Cold air intake
- Top-mount intercooler upgrade
- Equal-length headers
- Cat-back exhaust
- Upgraded clutch
- Custom dyno tune w/ EcuTek
Best for: Most you can safely get out of a stock-bottom-end EJ
RZ Stage 4
Custom build
Stage 3 plus a Blouch 1.5XT-R turbo upgrade
Price on application
- Everything in Stage 3
- Blouch 1.5XT-R turbo
- Re-tune w/ EcuTek
Best for: Streetable big-single. Strong response, real numbers
RZ Stage 4+
Custom build
Bigger turbo with surge tank and baffled sump for track use
Price on application
- Stage 3 bolt-ons
- Blouch 2.5XT-R turbo
- Surge tank
- Baffled sump & oil pickup
- Re-tune w/ EcuTek
Best for: Track and circuit cars where stock fuel and oil systems run out
RZ Stage 5
Custom build
Forged closed-deck short block with the biggest turbo on the menu
Price on application
- Stage 3 bolt-ons
- Blouch 3.5XT-R turbo
- Forged closed-deck short block
- Surge tank
- Baffled sump & oil pickup
- Re-tune w/ EcuTek
Best for: Big-power builds where the bottom end has to last
Want something custom? Get in touch →
All Under One Roof
Beyond the packages
Same building, same techs. Servicing, custom upgrades, and dyno work outside the off-the-shelf packages.
Servicing & Maintenance
EJ257 servicing by people who know where it bites. Logbook, AVCS solenoids, oil cooler installs, pre-track checks. Without the dealer markup.
- Logbook servicing
- Cooling & AVCS
- Diff & gearbox fluids
Performance Upgrades
Bolt-ons, TGV deletes, turbo upgrades, brakes, coilovers. The GR/GV catalogue is deep. We know what works and what's marketing.
- Intake, TBE & headers
- TGV delete
- Turbo upgrades
Custom Dyno Tuning
Custom dyno tuning w/ EcuTek on our in-house Dynapack. Each map is built from scratch for your car. No flash files, no shortcuts.
- EcuTek tuning
- E85 & flex fuel
- Boost & launch control
Performance Parts
Parts we fit on the WRX/STI GR
If we wouldn't put it on our own WRX/STI GR, it's not on this page.

HKS
Turbo kits, exhaust & oil coolers. Fits your WRX/STI GR

EcuTek
Factory ECU custom tuning. Fits your WRX/STI GR

Öhlins
Coilovers for street and track. Fits your WRX/STI GR

Invidia
Catbacks, downpipes, test pipes. Fits your WRX/STI GR
Korsh
Titanium catbacks, headers, TGV deletes. Fits your WRX/STI GR

Brembo
Big brake kits, pads, rotors. Fits your WRX/STI GR
Endless
Brake pads and fluid. Fits your WRX/STI GR

Exedy
Clutches and flywheels. Fits your WRX/STI GR

Bilstein
Monotube shocks. Fits your WRX/STI GR

H&R
Springs and sway bars. Fits your WRX/STI GR

Process West
Intercoolers and intake systems. Fits your WRX/STI GR

Motul
Engine oils and fluids. Fits your WRX/STI GR
Got a Subaru WRX / STI (GE/GH/GV/GR) project?
Service, build, or just trying to work out where to start. We reply within 24 hours.