Considering an ECU remap for your Chevrolet Impala SS 5.3 307hp? A Stage 1 remap can take this 2006 - 2014 petrol engine from 307 BHP to 332 BHP and from 438 Nm to 467 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 Chevrolet Impala can achieve.
The Chevrolet Impala SS 5.3 307hp is a 5.3L naturally aspirated petrol engine producing 307 BHP and 438 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 332 BHP and 467 Nm — a gain of around 25 BHP (8%) and 29 Nm (7%).
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 |
|---|---|---|---|---|---|
| 3.5 V6 211hp | 211 → 230 | +19 | 290 → 320 | +30 | Moderate (4/10) |
| 3.9 V6 245hp | 245 → 265 | +20 | 240 → 265 | +25 | Moderate (4/10) |
| 3.6 V6 305hp | 305 → 325 | +20 | 355 → 380 | +25 | Moderate (4/10) |
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.
