Holden Monaro 2001 - 2005 5.7 V8 306hp
Real standard and upgraded performance figures for the 5.7 V8 306hp engine in the Holden Monaro 2001 - 2005.
The Holden Monaro 2001 - 2005 5.7 V8 306hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 306 | 460 |
| Stage 1 | 325 | 480 |
| Stage 2 | 334 | 490 |
- Make
- Holden
- Model
- Monaro
- Generation
- 2001 - 2005
- Engine
- 5.7 V8 306hp
- Fuel type
- petrol
Frequently asked questions
Is Stage 1 tuning safe for the Holden Monaro 2001 - 2005 5.7 V8 306hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 5.7 V8 306hp make after tuning?
Standard output is 306 HP / 460 Nm; Stage 1 on this engine typically reaches 325 HP / 480 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Holden Monaro 2001 - 2005 5.7 V8 306hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 5.7 V8 306hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.