VW Transporter T5 2.5 174
Engine Tuning Midwales
VW Transporter T5 2.5 174 in Midwales. 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
VW Transporter T5 2.5 174: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+35 bhp · +20%- Standard174 bhp
- Remapped209 bhp
Torque
+115 Nm · +29%- Standard400 Nm
- Remapped515 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 VW Transporter T5 2.5 174 makes 174 bhp and 400 Nm. With Remap Experts in Midwales it moves to 209 bhp and 515 Nm, which adds 35 bhp (20%) and 115 Nm (29%).
Figures are indicative stage 1 estimates for a healthy diesel Volkswagen T4 Bus; results vary with the condition of the vehicle.
VW Transporter T5 2.5 174 remap figures
- Fuel: Diesel
- Standard power: 174 bhp, remapped: 209 bhp (+35 bhp, +20%)
- Standard torque: 400 Nm, remapped: 515 Nm (+115 Nm, +29%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a diesel Volkswagen T4 Bus
On a diesel the ECU decides how much fuel is injected and how hard the turbo works. A remap adjusts those calibrations within safe limits, so the gains show up mainly as extra torque low in the rev range and smoother, more responsive pull.
VW Transporter T5 2.5 174 against other T4 Bus engines
Among the 6 diesel T4 Bus engines we have figures for, the VW Transporter T5 2.5 174 ranks 4th for power gain, 1 bhp below the T4 Bus diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 35 bhp and 115 Nm sits at or above that benchmark.
Volkswagen T4 Bus vehicle tuning in Midwales
Whether you live in Midwales or nearby, the Midwales Remap Experts site is your local route to a quote. We regularly work with drivers in Llanidloes, Welshpool, Newtown, Machynlleth and Llandrindod Wells 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 Gwent, Cardiff and Chester, those neighbouring Remap Experts sites can help too.

Want these figures on your VW Transporter T5 2.5 174?
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Included
What we can do for your Volkswagen T4 Bus
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.
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