Jaguar XJR Supercharged
ECU Remapping in Lancaster
Jaguar XJR Supercharged in Lancaster. 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 XJR Supercharged: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +8%- Standard400 bhp
- Remapped430 bhp
Torque
+65 Nm · +12%- Standard550 Nm
- Remapped615 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
Owners of the Jaguar XJR Supercharged in Lancaster can expect a stage 1 remap to take it from 400 to 430 bhp and from 550 to 615 Nm, an extra 30 bhp (8%) and 65 Nm (12%).
The figures above are estimates for a standard, well-maintained Jaguar XJ petrol; they are not a guarantee of any particular result.
Jaguar XJR Supercharged remap figures
- Fuel: Petrol
- Standard power: 400 bhp, remapped: 430 bhp (+30 bhp, +8%)
- Standard torque: 550 Nm, remapped: 615 Nm (+65 Nm, +12%)
- Service: stage 1 ECU remap, fully dyno tested
How ECU remapping works on a petrol Jaguar XJ
Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.
Jaguar XJ ECU tuning in Lancaster
Remap Experts has a dedicated Lancaster site, so you deal with a local team backed by a national network. We regularly work with drivers in Millom, Ulverston, Seathwaite, Ravenglass and Grange-over-Sands and nearby areas of the North West.
Each remap is dyno tested before it is signed off, and is protected by a 30 day money back guarantee and a lifetime software warranty. Ask for a quote online or by phone.
If you are closer to Preston, Blackburn and Carlisle, those neighbouring Remap Experts sites can help too.

Ready for ECU remapping on your Jaguar XJ in Lancaster?
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Jaguar XJ
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 XJ 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