Holden Monaro Stage 1
2 engines – 306–408 hp
2
engines
+23 hp
Max gain
+7%
Avg. gain
| Engine | Fuel | Stock (hp) | Stage 1 (hp) | Gain |
|---|---|---|---|---|
| 5.7 V8 408hp | Petrol | 408 | 431 | +23 (6%) |
| 5.7 V8 306hp | Petrol | 306 | 327 | +21 (7%) |
FAQ
Is Stage 1 safe for the engine?+
Yes, Stage 1 is a mild optimization within factory safety margins. We use dealer-level equipment and verify results on a dyno.
How long does it take?+
Usually 2–4 hours, including diagnostics, remapping, and a control measurement on our dynamometer.
Does it affect fuel consumption?+
Stage 1 can reduce consumption (better torque curve) or slightly increase it under aggressive driving. On average, consumption stays the same.