Land Rover Range Rover / Sport 4.2 V8 Supercharged 396hp Remap

Name: Land Rover Range Rover / Sport 4.2 V8 Supercharged 396hp ECU Remap
Brand: Land Rover

Expected gains of +54 BHP and +90 Nm torque

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BHP+54 hp (14%)

Standard

396 hp

Tuned

450 hp

Torque+90 Nm (16%)

Standard

560 Nm

Tuned

650 Nm

Suitability

Good (6/10)

Gains Profile

Balanced

Headroom

Medium

Land Rover Range Rover / Sport 4.2 V8 Supercharged 396hp ECU Remapping

Considering an ECU remap for your Land Rover Range Rover / Sport 4.2 V8 Supercharged 396hp? A Stage 1 remap can take this 2002 - 2012 (L322) petrol engine from 396 BHP to 450 BHP and from 560 Nm to 650 Nm of torque (supercharged). This engine scores 6/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Land Rover Range Rover / Sport can achieve.

How this engine compares

8thof 33 Land Rover Range Rover / Sport engines by power gain
81%of the 9,842 engines we hold gain data for see a smaller power increase
74%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Land Rover Range Rover / Sport 4.2 V8 Supercharged 396hp is a 4.2L supercharged petrol engine producing 396 BHP and 560 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 450 BHP and 650 Nm — a gain of around 54 BHP (14%) and 90 Nm (16%).

This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.

From a technical perspective, the transmission is many variants use zf 8-speed automatic (where fitted). at this torque level, transmission and driveline servicing history becomes especially important..

Considerations: 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

!High tuned torque: check transmission torque capacity and service history.

Other Range Rover / Sport 2002 - 2012 (L322) Engines

Engine	BHP	Gain	Torque	Gain	Score
3.0 TD6 177hp	177 → 205	+28	390 → 470	+80	Good (6.5/10)
2.7 TDV6 190hp	190 → 240	+50	440 → 520	+80	Good (7.5/10)
3.0 TDV6 211hp	211 → 295	+84	600 → 680	+80	Good (7.5/10)
3.0 TDV6 245hp	245 → 295	+50	600 → 680	+80	Good (6.5/10)
3.0 TDV6 256hp	256 → 295	+39	600 → 680	+80	Good (6/10)
3.6 TDV8 272hp	272 → 302	+30	640 → 740	+100	Good (6/10)
4.4i V8 299hp	299 → 318	+19	425 → 448	+23	Limited (3.5/10)
4.4 TDV8 313hp	313 → 380	+67	700 → 800	+100	Good (6.5/10)
5.0 Supercharged 510hp	510 → 560	+50	625 → 700	+75	Good (6/10)

Technical Specifications

Fuel Type: Petrol
Aspiration: Supercharged
Displacement: 4.2L
Capacity: 4196 CC
Type: Car
Engine Family: Land Rover 4.2L 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

MakeLand Rover

ModelRange Rover / Sport

Generation2002 - 2012 (L322)

Engine4.2 V8 Supercharged 396hp

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.