Holden (the Australian GM brand) produced vehicles sharing engines with Chevrolet and Opel. The 2.0 CDTi diesel, 2.0T petrol and LS V8 platforms are all established tuning targets for Holden import vehicles.
The Holden Colorado with 2.8 Duramax diesel responds to Stage 1 with +50–70 Nm — a significant improvement for towing applications. The Commodore with LS3 V8 responds to ignition and fuel optimization with improved throttle response and peak power.
Holden ECU tuning uses GM-compatible professional tools. Most Holden models share ECU platforms with Opel, Chevrolet or Vauxhall equivalents, providing good software support. All maps are fully reversible.