Jaguar XKR 4.2 V8 Supercharged
ECU Remapping Northampton
Jaguar XKR 4.2 V8 Supercharged in Northampton. 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
Jaguar XKR 4.2 V8 Supercharged: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+45 bhp · +11%- Standard420 bhp
- Remapped465 bhp
Torque
+105 Nm · +19%- Standard560 Nm
- Remapped665 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
The Jaguar XKR 4.2 V8 Supercharged produces 420 bhp and 560 Nm of torque as standard. After a stage 1 ECU remap in Northampton, our figures show 465 bhp and 665 Nm: a gain of 45 bhp (11%) and 105 Nm (19%).
Treat the numbers as a guide: they are stage 1 estimates for a petrol Jaguar XKR in sound condition, and individual cars differ.
Jaguar XKR 4.2 V8 Supercharged power and torque after remapping
- Fuel: Petrol
- Standard power: 420 bhp, remapped: 465 bhp (+45 bhp, +11%)
- Standard torque: 560 Nm, remapped: 665 Nm (+105 Nm, +19%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol Jaguar XKR
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.
Jaguar XKR 4.2 V8 Supercharged against other XKR engines
Among the 2 petrol XKR engines we have figures for, the 4.2 V8 Supercharged ranks 1st for power gain, 10 bhp above the XKR petrol average of 35 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 45 bhp and 105 Nm sits at or above that benchmark.
Book performance tuning for your Jaguar XKR in Northampton
Whether you live in Northampton or nearby, the Northampton Remap Experts site is your local route to a quote. We regularly work with drivers in Newport Pagnell, Towcester, Silverstone, Rushden and Market Harborough and nearby areas of the East Midlands.
Every remap is fully dyno tested and comes with a 30 day money back guarantee and a lifetime software warranty. Call 0800 779 7864 for a quote.
If you are closer to Leicester, Milton Keynes and Coventry, those neighbouring Remap Experts sites can help too.
Want these figures on your Jaguar XKR 4.2 V8 Supercharged?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Jaguar XKR
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.
Same model
Other XKR engines
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