Expected gains of +22 BHP and +20 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Chevrolet Silverado 6.2 V8 403hp? A Stage 1 remap can take this 2007 - 2014 petrol engine from 403 BHP to 425 BHP and from 565 Nm to 585 Nm of torque (naturally aspirated). This engine scores 3/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Chevrolet Silverado can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Chevrolet Silverado 6.2 V8 403hp is a 6.2L naturally aspirated petrol engine producing 403 BHP and 565 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 425 BHP and 585 Nm — a gain of around 22 BHP (5%) and 20 Nm (4%).
This engine has low 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 195hp | 195 → 215 | +20 | 260 → 280 | +20 | Moderate (4/10) |
| 4.8 V8 295hp | 295 → 314 | +19 | 414 → 439 | +25 | Limited (3.5/10) |
| 5.3 V8 315hp | 315 → 335 | +20 | 458 → 480 | +22 | Limited (3.5/10) |
| 6.0 V8 360hp | 360 → 380 | +20 | 515 → 535 | +20 | Limited (3/10) |
| 6.6 V8 397hp | 397 → 440 | +43 | 1037 → 1100 | +63 | Moderate (5.5/10) |
Get a personalised remap quote for your Chevrolet Silverado. 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.