Holden Monaro ECU & TCU Tuning Files
Custom Holden Monaro calibration files for approved Australian workshops — typically around +22 hp and +20 Nm. Built from your stock read and data logs, for off-road and competition use.
Holden Monaro — Engine Variants & Typical Gains
Every Holden Monaro file is developed from the vehicle's own stock read and your declared hardware, then refined against your data logs using HP Tuners.
| Engine variant | Power (stock → tuned) | Torque (stock → tuned) |
|---|---|---|
| 5.7 V8 408hp | 408 → 430 hp | 460 → 480 Nm |
| 5.7 V8 306hp | 306 → 328 hp | 460 → 480 Nm |
Tuned figures are typical estimates from this model's gains; actual results depend on variant, fuel and supporting hardware, and are verified from your logs.
Dyno-Verified Holden Results
Before-and-after results from real Holden calibrations in the tune archive.
Holden Monaro Tuning Files — Common Questions
How much power can a Holden Monaro gain from tuning?
Typical gains for the Holden Monaro are around +22 hp and +20 Nm, developed from the stock read and verified against your data logs. Exact figures depend on the variant, fuel and supporting hardware.
Are Holden Monaro tuning files custom?
Yes — every Holden file is built for the specific vehicle and its declared hardware using HP Tuners, then refined from your logged data. We do not supply generic, off-the-shelf maps.
Do you supply Holden Monaro files Australia-wide?
Yes. Holden ECU and TCU files are delivered remotely through the dealer portal to approved workshops in every Australian state and territory, for off-road and competition use.
Tuning a Holden Monaro?
Register your workshop to upload the stock read and have the calibration developed and revised around your data.
