Jaguar XJ R575 5.0 V8 Supercharged 575hp Remap

Name: Jaguar XJ R575 5.0 V8 Supercharged 575hp ECU Remap
Brand: Jaguar

Expected gains of +25 BHP and +50 Nm torque

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BHP+25 hp (4%)

Standard

575 hp

Tuned

600 hp

Torque+50 Nm (7%)

Standard

700 Nm

Tuned

750 Nm

Suitability

Moderate (5/10)

Gains Profile

Limited headroom

Headroom

Low

Jaguar XJ R575 5.0 V8 Supercharged 575hp ECU Remapping

Considering an ECU remap for your Jaguar XJ R575 5.0 V8 Supercharged 575hp? A Stage 1 remap can take this 2009 -> petrol engine from 575 BHP to 600 BHP and from 700 Nm to 750 Nm of torque (supercharged). This engine scores 5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Jaguar XJ can achieve.

How this engine compares

8thof 10 Jaguar XJ engines by power gain
28%of the 9,842 engines we hold gain data for see a smaller power increase
27%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Jaguar XJ R575 5.0 V8 Supercharged 575hp is a 5.0L supercharged petrol engine producing 575 BHP and 700 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 600 BHP and 750 Nm — a gain of around 25 BHP (4%) and 50 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.

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.

Other XJ 2009 -> Engines

Engine	BHP	Gain	Torque	Gain	Score
2.0 SC Turbo 240hp	240 → 270	+30	340 → 440	+100	Good (7/10)
3.0D 275hp	275 → 325	+50	600 → 675	+75	Good (6.5/10)
3.0D 300hp	300 → 330	+30	700 → 780	+80	Good (6/10)
3.0 V6 SC Turbo 340hp	340 → 390	+50	450 → 500	+50	Good (6/10)
5.0 V8 385hp	385 → 405	+20	515 → 540	+25	Limited (3.5/10)
5.0 V8 Supercharged 510hp	510 → 560	+50	625 → 700	+75	Good (6/10)
R 5.0 V8 Supercharged 550hp	550 → 570	+20	680 → 720	+40	Moderate (4.5/10)

Technical Specifications

Fuel Type: Petrol
Aspiration: Supercharged
Displacement: 5L
Capacity: 5000 CC
Type: Car
Engine Family: Jaguar 5.0L Supercharged SC Petrol

ECU & Transmission

Likely ECU Low confidence: Petrol ECU (varies by market/year)
Gearbox Medium confidence: Many variants use ZF 8-speed automatic (where fitted). At this torque level, transmission and driveline servicing history becomes especially important.

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Confirm Your Vehicle

MakeJaguar

ModelXJ

Generation2009 ->

EngineR575 5.0 V8 Supercharged 575hp

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.