Vauxhall Signum 3.0 V6 CDTi 177
ECU Remapping Gwent
Vauxhall Signum 3.0 V6 CDTi 177 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
Vauxhall Signum 3.0 V6 CDTi 177: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+43 bhp · +24%- Standard177 bhp
- Remapped220 bhp
Torque
+75 Nm · +20%- Standard370 Nm
- Remapped445 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 Vauxhall Signum 3.0 V6 CDTi 177 makes 177 bhp and 370 Nm. With Remap Experts in Gwent it moves to 220 bhp and 445 Nm, which adds 43 bhp (24%) and 75 Nm (20%).
Figures are indicative stage 1 estimates for a healthy diesel Vauxhall Signum; results vary with the condition of the vehicle.
Vauxhall Signum 3.0 V6 CDTi 177: remap at a glance
- Fuel: Diesel
- Standard power: 177 bhp, remapped: 220 bhp (+43 bhp, +24%)
- Standard torque: 370 Nm, remapped: 445 Nm (+75 Nm, +20%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Vauxhall Signum: what changes with a remap
Modern diesels are held back by conservative factory calibrations. A remap updates the fuel and boost maps stored in the ECU, which is why drivers notice stronger acceleration from low revs and less need to change down on hills or when loaded.
Vauxhall Signum 3.0 V6 CDTi 177 against other Signum engines
Of the 5 diesel Signum engines in our data, this one comes 1st for power gain, which is 7 bhp above the Signum diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 43 bhp and 75 Nm sits at or above that benchmark.
Vauxhall Signum chip tuning in Gwent
Whether you live in Gwent or nearby, the Gwent Remap Experts site is your local route to a quote. 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.

Ready for ECU remapping on your Vauxhall Signum in Gwent?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Vauxhall Signum
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