Considering an ECU remap for your Cadillac STS 4.6 V8 320hp? A Stage 1 remap can take this 2006 - 2010 petrol engine from 320 BHP to 340 BHP and from 427 Nm to 445 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 Cadillac STS can achieve.
The Cadillac STS 4.6 V8 320hp is a 4.6L naturally aspirated petrol engine producing 320 BHP and 427 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 340 BHP and 445 Nm — a gain of around 20 BHP (6%) and 18 Nm (4%).
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 |
|---|---|---|---|---|---|
| 3.6 V6 255hp | 255 → 275 | +20 | 342 → 370 | +28 |
| Moderate (4/10) |
| 4.4 V8 469hp | 469 → 500 | +31 | 595 → 680 | +85 | Moderate (4.5/10) |
Get a personalised remap quote for your Cadillac STS. 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.
