EJ PLATFORM SPECIALISTS EJ207 / EJ255 • 2000–2007

Subaru WRX / STI (GD/GG)

Bug, Blob, Hawk Eye. Custom dyno tuning w/ EcuTek and full builds for the 2nd-gen WRX & STI.

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Got a different generation? See all WRX/STI generations

Subaru WRX STI GD at Revzone Melbourne

Packages

Performance packages

Parts, labour, and dyno tune included. No hidden costs.

RZ Stage 1

ECU tune

Best for Stock or lightly modded EJ owners wanting more from 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
Get a quote for RZ Stage 1

RZ Stage 2

Bolt-ons

Best for Owners ready for bolt-ons and the supporting tune to make them work

Price on application

  • Downpipe
  • Cold air intake
  • Top-mount intercooler upgrade
  • Custom dyno tune w/ EcuTek
Get a quote for RZ Stage 2

RZ Stage 3

Most popular

Full bolt-ons

Best for Most you can safely get out of a stock-bottom-end EJ

Price on application

  • Everything in RZ Stage 2
  • Equal-length headers
  • Cat-back exhaust
  • Upgraded clutch
  • Re-tune w/ EcuTek
Get a quote for RZ Stage 3

RZ Stage 4

Big-single street

Best for Streetable big-single. Strong response, real numbers

Price on application

  • Everything in RZ Stage 3
  • Blouch 1.5XT-R turbo
  • Re-tune w/ EcuTek
Get a quote for RZ Stage 4

RZ Stage 4+

Track build

Best for Track and circuit cars where stock fuel and oil systems run out

Price on application

  • RZ Stage 3 bolt-ons
  • Blouch 2.5XT-R turbo
  • Surge tank
  • Baffled sump & oil pickup
  • Re-tune w/ EcuTek
Get a quote for RZ Stage 4+

RZ Stage 5

Forged track build

Best for Big-power builds where the bottom end has to last

Price on application

  • RZ Stage 3 bolt-ons
  • Blouch 3.5XT-R turbo
  • Forged closed-deck short block
  • Surge tank
  • Baffled sump & oil pickup
  • Re-tune w/ EcuTek
Get a quote for RZ Stage 5

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

We've been working on EJs since 2000. Logbook intervals, the right oil for your motor, AVCS solenoids, pre-track checks. By people who tune these engines every week.

  • Logbook servicing
  • Cooling system
  • AVCS & sensor checks
  • Pre-track inspections
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Performance upgrades

EJ platforms are deep. Bolt-ons through to closed-deck builds. We supply, fit, and tune the lot.

  • Intake & exhaust
  • Turbo upgrades
  • Engine builds
  • Clutch & drivetrain
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Custom dyno tuning

Custom dyno tuning w/ EcuTek on our in-house Dynapack. Safe AFRs, clean knock control, power that holds up on the road.

  • EcuTek tuning
  • E85 & flex fuel
  • Boost control
  • Launch control
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Performance parts

Parts we fit on the WRX/STI GD

If we wouldn't put it on our own WRX/STI GD, it's not on this page.

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FAQ

Common questions

Which GD models do you tune?
Every one. EJ207 STI, EJ205/EJ255 WRX, plus the JDM Spec C and RA cars when they show up. Bug, Blob, Hawk Eye. All the same workshop.
Can you tune a chipped or aftermarket ECU?
Yes. EcuTek on factory ECU is what we run most days. We'll also tune AEM, Link, Haltech, or Cobb if your car's already on one. Tell us what's in it when you book.
How much power can a GD safely make?
On a healthy stock motor with the right supporting mods, 250–280kW at the hubs is a sensible street ceiling. Past that you're into forged internals. Different conversation, different budget.
Are ringland failures still a worry?
On a tired EJ255 or a badly-tuned EJ207, yes. We compression-test before we tune anything we don't already know. Conservative AFRs and the right oil get a healthy motor a long way. If the bottom end looks off, we'll tell you straight.
I've got a 2007+ STI. Is that still GD?
No. 2007 onwards is the GR gen. Different page, same workshop.

Got a Subaru WRX / STI (GD/GG) project?

Service, build, or just trying to work out where to start.

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