Considering an ECU remap for your GMC Savana 5.7 V8 255hp? A Stage 1 remap can take this 2003 -> petrol engine from 255 BHP to 275 BHP and from 447 Nm to 470 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your GMC Savana can achieve.
The GMC Savana 5.7 V8 255hp is a 5.7L naturally aspirated petrol engine producing 255 BHP and 447 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 275 BHP and 470 Nm — a gain of around 20 BHP (8%) and 23 Nm (5%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 4.3 V6 200hp | 200 → 220 | +20 | 353 → 380 | +27 |
| Moderate (4/10) |
| 4.8 V8 275hp | 275 → 295 | +20 | 393 → 415 | +22 | Limited (3.5/10) |
| 5.3 V8 310hp | 310 → 330 | +20 | 453 → 480 | +27 | Limited (3.5/10) |
| 6.0 V8 342hp | 342 → 360 | +18 | 506 → 530 | +24 | Limited (3.5/10) |
| 6.6 V8 365hp | 365 → 390 | +25 | 894 → 930 | +36 | Moderate (5.5/10) |
Get a personalised remap quote for your GMC Savana. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
