Considering an ECU remap for your Chevrolet Impala 3.9 V6 245hp? A Stage 1 remap can take this 2006 - 2014 petrol engine from 245 BHP to 265 BHP and from 240 Nm to 265 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Chevrolet Impala can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Chevrolet Impala 3.9 V6 245hp is a 3.9L naturally aspirated petrol engine producing 245 BHP and 240 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 265 BHP and 265 Nm — a gain of around 20 BHP (8%) and 25 Nm (10%).
This engine has limited remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. 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.
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 |
|---|
| 3.5 V6 211hp | 211 → 230 | +19 | 290 → 320 | +30 | Moderate (4/10) |
| 3.6 V6 305hp | 305 → 325 | +20 | 355 → 380 | +25 | Moderate (4/10) |
| SS 5.3 307hp | 307 → 332 | +25 | 438 → 467 | +29 | Limited (3.5/10) |
Get a personalised remap quote for your Chevrolet Impala. 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.
