Range Rover 4.2 V8 Kompressor 390
ECU Tuning in London
Range Rover 4.2 V8 Kompressor 390 in London. Standard and remapped figures for this exact engine.
- Fully dyno tested remaps
- 30 day money back guarantee
- Lifetime software warranty
- UK-wide local network
Remap stats
Range Rover 4.2 V8 Kompressor 390: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +8%- Standard396 bhp
- Remapped426 bhp
Torque
+45 Nm · +8%- Standard560 Nm
- Remapped605 Nm
Tuning figures are indicative estimates, not guaranteed results. Actual results depend on the condition of the vehicle.
Prices from £130
Fully dyno tested | 30 day money back guarantee | Lifetime software warranty
Out of the box the Range Rover 4.2 V8 Kompressor 390 gives 396 bhp and 560 Nm. Remapped in London, we record 426 bhp and 605 Nm, so 30 bhp and 45 Nm more, or 8% and 8% respectively.
These are indicative figures for a petrol Land Rover Range Rover in good health. Your own results depend on the condition of the car.
Range Rover 4.2 V8 Kompressor 390: remap at a glance
- Fuel: Petrol
- Standard power: 396 bhp, remapped: 426 bhp (+30 bhp, +8%)
- Standard torque: 560 Nm, remapped: 605 Nm (+45 Nm, +8%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol Land Rover Range Rover
Petrol engines are remapped by refining fuelling, ignition timing and, on turbocharged engines, boost control. Done carefully this releases performance the manufacturer left in reserve, giving sharper throttle response and a stronger top end.
How the Range Rover 4.2 V8 Kompressor 390 compares
Among the 4 petrol Range Rover engines we have figures for, the Range Rover 4.2 V8 Kompressor 390 ranks 4th for power gain, 4 bhp below the Range Rover petrol average of 34 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 30 bhp and 45 Nm sits at or above that benchmark.
Remapping your Land Rover Range Rover in London
Based around London, our team serves local drivers as part of the nationwide Remap Experts network. We regularly work with drivers in Hounslow, Watford, Sutton, Romford and Enfield and nearby areas of London.
All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.
If you are closer to Croydon, Kensingtonandchelsea and Essex, those neighbouring Remap Experts sites can help too.
Get a quote for your Range Rover 4.2 V8 Kompressor 390
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Land Rover Range Rover
Stage 1 ECU remap
Add power and torque and improve driveability. Software only, tailored to your engine.
ECU repair and testing
Is your engine control unit playing up? We can arrange testing and repair, and source replacement ECUs.
DPF and EGR fault repair
Persistent DPF or EGR errors diagnosed and resolved in accordance with all current road-legal standards.
Engine carbon cleaning
Fault finding and carbon cleaning for the inside of your engine, typically completed in a couple of hours.
From quote to remapped in four steps
No jargon and no pressure. Here is exactly what happens.
- 01
Find your vehicle
Choose your make, model and engine to see the standard and remapped power and torque for your car.
- 02
Request a quote
Send your details and we contact you by SMS or call back with a quote. No obligation.
- 03
Book with your local site
Your local Remap Experts site arranges the remap and answers any questions about your car.
- 04
Remapped and dyno tested
Your remap is fully dyno tested, with a 30 day money back guarantee and a lifetime software warranty.
Everything you need to know
Plain-English guides to how remapping works, what it does and what to check first.
- 6 min read
What is ECU remapping?
The engine control unit, what a remap changes, and who it suits.
Read guide - 5 min read
The benefits of ECU remapping
More torque, better driveability and the potential for better economy.
Read guide - 6 min read
How ECU remapping works, step by step
From reading the original software to the dyno test.
Read guide