BMW 5er E39 M5 5.0 400
ECU Tuning in Cardiff
BMW 5er E39 M5 5.0 400 in Cardiff. 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
BMW 5er E39 M5 5.0 400: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+25 bhp · +6%- Standard400 bhp
- Remapped425 bhp
Torque
+40 Nm · +8%- Standard500 Nm
- Remapped540 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
A stage 1 remap lifts the BMW 5er E39 M5 5.0 400 from 400 bhp to 425 bhp, and from 500 Nm to 540 Nm of torque. That is 25 bhp (6%) more power and 40 Nm (8%) more torque from software alone, available in Cardiff.
These are indicative figures for a petrol BMW 5 Series in good health. Your own results depend on the condition of the car.
BMW 5er E39 M5 5.0 400 remap figures
- Fuel: Petrol
- Standard power: 400 bhp, remapped: 425 bhp (+25 bhp, +6%)
- Standard torque: 500 Nm, remapped: 540 Nm (+40 Nm, +8%)
- Service: stage 1 ECU remap, fully dyno tested
Petrol BMW 5 Series: what changes with a remap
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.
How the BMW 5er E39 M5 5.0 400 compares
Of the 30 petrol 5 Series engines in our data, this one comes 6th for power gain, which is 3 bhp above the 5 Series petrol average of 22 bhp.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 25 bhp and 40 Nm sits below that benchmark.
Book performance tuning for your BMW 5 Series in Cardiff
Remap Experts Cardiff is part of the UK-wide Remap Experts network. We regularly work with drivers in Pentyrch, Rumney, Riverside, Rhiwbina and Llandaff and nearby areas of Wales.
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 Gwent, Bristol and Midwales, those neighbouring Remap Experts sites can help too.
Want these figures on your BMW 5er E39 M5 5.0 400?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your BMW 5 Series
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 5 Series 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