Porsche Cayenne S 4.5 V8 340hp Remap

Name: Porsche Cayenne S 4.5 V8 340hp ECU Remap
Brand: Porsche

Expected gains of +20 BHP and +25 Nm torque

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BHP+20 hp (6%)

Standard

340 hp

Tuned

360 hp

Torque+25 Nm (6%)

Standard

420 Nm

Tuned

445 Nm

Suitability

Limited (3.5/10)

Gains Profile

Limited headroom

Headroom

Low

Porsche Cayenne S 4.5 V8 340hp ECU Remapping

Considering an ECU remap for your Porsche Cayenne S 4.5 V8 340hp? A Stage 1 remap can take this 955 - 2002 - 2007 petrol engine from 340 BHP to 360 BHP and from 420 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 Porsche Cayenne can achieve.

How this engine compares

30thof 37 Porsche Cayenne engines by power gain
14%of the 9,842 engines we hold gain data for see a smaller power increase
14%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Porsche Cayenne S 4.5 V8 340hp is a 4.5L naturally aspirated petrol engine producing 340 BHP and 420 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 360 BHP and 445 Nm — a gain of around 20 BHP (6%) and 25 Nm (6%).

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 Cayenne 955 - 2002 - 2007 Engines

Engine

Technical Specifications

Fuel Type: Petrol
Aspiration: Naturally Aspirated
Displacement: 4.5L
Capacity: 4511 CC
Type: Car
Engine Family: Porsche 4.5L 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.

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Confirm Your Vehicle

MakePorsche

ModelCayenne

Generation955 - 2002 - 2007

EngineS 4.5 V8 340hp

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.

3.2 V6 250hp	250 → 270	+20	320 → 345	+25	Moderate (4/10)
4.5 V8 Turbo 450hp	450 → 500	+50	620 → 750	+130	Good (6.5/10)
4.5 V8 Turbo 500hp	500 → 530	+30	700 → 780	+80	Moderate (5.5/10)
S 4.5 Turbo 520hp	520 → 560	+40	720 → 800	+80	Moderate (5.5/10)