Citroen Xm 2.5 TDI 129
Engine Remapping in Basingstoke
Citroen Xm 2.5 TDI 129 in Basingstoke. 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
Citroen Xm 2.5 TDI 129: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+30 bhp · +23%- Standard129 bhp
- Remapped159 bhp
Torque
+45 Nm · +16%- Standard285 Nm
- Remapped330 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 Citroen Xm 2.5 TDI 129 in Basingstoke can expect a stage 1 remap to take it from 129 to 159 bhp and from 285 to 330 Nm, an extra 30 bhp (23%) and 45 Nm (16%).
The figures above are estimates for a standard, well-maintained Citroen XM petrol; they are not a guarantee of any particular result.
Citroen Xm 2.5 TDI 129 power and torque after remapping
- Fuel: Petrol
- Standard power: 129 bhp, remapped: 159 bhp (+30 bhp, +23%)
- Standard torque: 285 Nm, remapped: 330 Nm (+45 Nm, +16%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol Citroen XM
A petrol remap re-works the engine management calibration: air-fuel ratio, ignition advance and boost where fitted. The result is more power and a more immediate throttle, delivered by software rather than hardware changes.
How the Citroen Xm 2.5 TDI 129 compares
Of the 4 petrol XM engines in our data, this one comes 3rd for power gain, which is 2 bhp above the XM petrol average of 28 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 Citroen XM in Basingstoke
Remap Experts Basingstoke is part of the UK-wide Remap Experts network. We regularly work with drivers in Gatwick, Littlehampton, Horsham, Haywards Heath and Crawley and nearby areas of the South East.
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 Berkshire, Southampton and Surrey, those neighbouring Remap Experts sites can help too.

Get a quote for your Citroen Xm 2.5 TDI 129
Tell us about your car and we will come back with a quote by SMS or phone.
Included
What we can do for your Citroen XM
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 XM 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