Buick Lacrosse 2005 - 2009 5.3 V8 300hp
Real standard and upgraded performance figures for the 5.3 V8 300hp engine in the Buick Lacrosse 2005 - 2009.
Standard vs. upgraded performance for the Buick Lacrosse 2005 - 2009 5.3 V8 300hp, based on real files we've processed for this exact engine.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 300 | 438 |
| Stage 1 | 320 | 460 |
| Stage 2 | 330 | 471 |
- Make
- Buick
- Model
- Lacrosse
- Generation
- 2005 - 2009
- Engine
- 5.3 V8 300hp
- Fuel type
- Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Buick Lacrosse 2005 - 2009 5.3 V8 300hp?
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 5.3 V8 300hp make after tuning?
Standard output is 300 HP / 438 Nm; Stage 1 on this engine typically reaches 320 HP / 460 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Buick Lacrosse 2005 - 2009 5.3 V8 300hp 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 5.3 V8 300hp 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.