BMW 5er E34 M5 3.8 340
ECU Remapping Gwent
BMW 5er E34 M5 3.8 340 in Gwent. 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 E34 M5 3.8 340: standard vs remapped
Petrol engine. Indicative stage 1 figures, fully dyno tested.
Power
+22 bhp · +6%- Standard340 bhp
- Remapped362 bhp
Torque
+47 Nm · +12%- Standard400 Nm
- Remapped447 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
Standard, the BMW 5er E34 M5 3.8 340 makes 340 bhp and 400 Nm. With Remap Experts in Gwent it moves to 362 bhp and 447 Nm, which adds 22 bhp (6%) and 47 Nm (12%).
Figures are indicative stage 1 estimates for a healthy petrol BMW 5 Series; results vary with the condition of the vehicle.
BMW 5er E34 M5 3.8 340 remap figures
- Fuel: Petrol
- Standard power: 340 bhp, remapped: 362 bhp (+22 bhp, +6%)
- Standard torque: 400 Nm, remapped: 447 Nm (+47 Nm, +12%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a petrol BMW 5 Series
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.
BMW 5er E34 M5 3.8 340 against other 5 Series engines
Of the 30 petrol 5 Series engines in our data, this one comes 13th for power gain, which is exactly the 5 Series petrol average.
Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 22 bhp and 47 Nm sits below that benchmark.
BMW 5 Series engine remapping in Gwent
This is the Gwent site of the Remap Experts network, serving local drivers. We regularly work with drivers in Crumlin, Rassau, Manmoel, Ebbw Vale and Brynmawr and nearby areas of Wales.
You get a fully dyno tested remap, a 30 day money back guarantee and a lifetime software warranty with every job. Get your quote today on 0800 779 7864.
If you are closer to Cardiff, Bristol and Midwales, those neighbouring Remap Experts sites can help too.
Want these figures on your BMW 5er E34 M5 3.8 340?
Tell us about your car and we will come back with a quote by SMS or phone.
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