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Holden

Commodore VE — Stage 1 ECU & TCU Tune

2009 L98 98 RON RWD Stage 1
kW
234 247
+13
HP
314 331
+17
Nm
438 456
+18
Holden
Commodore · 2009
Photo withheld for client privacy
Dyno Chart — digitised from report
Vehicle
Make
Holden
Model
Commodore
Year
2009
Series
VE
Engine
L98
Drive
RWD
ECU
Factory
Tune
ECU & TCU Tune
Fuel & Boost
Fuel Type
98 RON
Modifications
Over The Rail intake Extractors Full exhaust system
Improvements
  • 6% power increase to 247kW
  • 4% torque increase to 456Nm
  • Optimized boost control
  • Enhanced fuel system management
  • Improved drive-by-wire response
  • Wastegate solenoid tuning
L98 VE Commodore with bolt-ons showing honest street gains

The L98 VE responds well to basic bolt-ons and a proper retune. This 2009 example came in with over-the-rail intake, extractors, and a full exhaust—fairly typical for an owner chasing a bit more driveability without touching internals.

The Factory ECU calibration was revised to suit the improved breathing and 98 RON, while the TCU side received attention to firm up shifts and better support the revised torque curve. Result was 247 kW at the wheels, up from 234 kW, and torque lifted from 438 Nm to 456 Nm.

Not a huge jump on paper, but the mid-range is noticeably fatter and the auto shifts with more intent. Solid outcome for a Stage 1 street car that still runs cats and sees daily use.

Common questions
Does the VE L98 need supporting mods for a Stage 1 tune?

No hardware changes are strictly required, but this example had intake, extractors, and exhaust already fitted. You'll see the best return with at least some breathing improvements and premium fuel.

What does the TCU tune actually change on these?

Shift points, pressure, and torque management are adjusted to suit the revised engine calibration. The result is firmer, more responsive shifts that support the extra torque without slipping or hunting.

Are these figures at the hubs or on a chassis dyno?

These are wheel figures as recorded by the workshop on their dyno. Factory ECU platform, 98 RON pump fuel.

Workshop & Dealer Access

Protunes supplies ECU calibration files exclusively to approved workshops, tuners, and dealers throughout Australia. Platform: Factory.

Apply for Workshop Access