Cadillac CTS 5.7 V8 405hp Remap

Name: Cadillac CTS 5.7 V8 405hp ECU Remap
Brand: Cadillac

Expected gains of +25 BHP and +27 Nm torque

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BHP+25 hp (6%)

Standard

405 hp

Tuned

430 hp

Torque+27 Nm (5%)

Standard

533 Nm

Tuned

560 Nm

Suitability

Limited (3.5/10)

Gains Profile

Limited headroom

Headroom

Low

Cadillac CTS 5.7 V8 405hp ECU Remapping

Considering an ECU remap for your Cadillac CTS 5.7 V8 405hp? A Stage 1 remap can take this 2002 - 2007 petrol engine from 405 BHP to 430 BHP and from 533 Nm to 560 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 CTS can achieve.

How this engine compares

5thof 14 Cadillac CTS engines by power gain
28%of the 9,842 engines we hold gain data for see a smaller power increase
16%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Cadillac CTS 5.7 V8 405hp is a 5.7L naturally aspirated petrol engine producing 405 BHP and 533 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 430 BHP and 560 Nm — a gain of around 25 BHP (6%) and 27 Nm (5%).

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 CTS 2002 - 2007 Engines

Engine

Technical Specifications

Fuel Type: Petrol
Aspiration: Naturally Aspirated
Displacement: 5.7L
Capacity: 5665 CC
Type: Car
Engine Family: Cadillac 5.7L V8 NA Petrol

ECU & Transmission

Likely ECU Low confidence: Petrol ECU (varies by market/year)
Gearbox Low confidence: Transmission varies by trim and market; check manual/automatic type and torque rating. At this torque level, transmission and driveline servicing history becomes especially important.

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MakeCadillac

ModelCTS

Generation2002 - 2007

Engine5.7 V8 405hp

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.

2.8 V6 215hp	215 → 235	+20	262 → 290	+28	Moderate (4/10)
3.2 V6 24V 223hp	223 → 243	+20	298 → 336	+38	Moderate (4.5/10)
3.6 V6 257hp	257 → 270	+13	340 → 365	+25	Moderate (4/10)
6.0 V8 405hp	405 → 425	+20	536 → 555	+19	Limited (3/10)