BHP+20 hp (6%)
Standard
320 hp
Tuned
340 hp
Torque+18 Nm (4%)
Standard
427 Nm
Tuned
445 Nm
Suitability
Limited (3.5/10)Gains Profile
Limited headroomHeadroom
LowCadillac STS 4.6 V8 320hp ECU Remapping
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.
How this engine compares
- 2ndof 3 Cadillac STS engines by power gain
- 14%of the 9,842 engines we hold gain data for see a smaller power increase
- 7%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
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.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
!High tuned torque: check transmission torque capacity and service history.
Other STS 2006 - 2010 Engines
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