Holden Commodore Stage 1
8 engines – 235–412 hp
8
engines
+36 hp
Max gain
+8%
Avg. gain
1999 - 2005
1 engines
| Engine | Fuel | Stock (hp) | Stage 1 (hp) | Gain |
|---|---|---|---|---|
| 5.7 V8 306hp | Petrol | 306 | 342 | +36 (12%) |
2005 - 2008
3 engines
| Engine | Fuel | Stock (hp) | Stage 1 (hp) | Gain |
|---|---|---|---|---|
| 6.0 V8 Clubsport 412hp | Petrol | 412 | 437 | +25 (6%) |
| 6.0 V8 354hp | Petrol | 354 | 378 | +24 (7%) |
| 3.6 V6 235hp | Petrol | 235 | 256 | +21 (9%) |
2013 ->
4 engines
| Engine | Fuel | Stock (hp) | Stage 1 (hp) | Gain |
|---|---|---|---|---|
| 3.6 V6 280hp | Petrol | 280 | 303 | +23 (8%) |
| 6.2 V8 408hp | Petrol | 408 | 431 | +23 (6%) |
| 6.0 V8 350hp | Petrol | 350 | 372 | +22 (6%) |
| 6.0 V8 360hp | Petrol | 360 | 381 | +21 (6%) |
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.