Alfa Romeo 166 JTD 2.4 140
Remapping in Portsmouth
Alfa Romeo 166 JTD 2.4 140 in Portsmouth. 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
Alfa Romeo 166 JTD 2.4 140: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+38 bhp · +27%- Standard140 bhp
- Remapped178 bhp
Torque
+93 Nm · +31%- Standard304 Nm
- Remapped397 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
Out of the box the Alfa Romeo 166 JTD 2.4 140 gives 140 bhp and 304 Nm. Remapped in Portsmouth, we record 178 bhp and 397 Nm, so 38 bhp and 93 Nm more, or 27% and 31% respectively.
These are indicative figures for a diesel Alfa Romeo 166 in good health. Your own results depend on the condition of the car.
Alfa Romeo 166 JTD 2.4 140 remap figures
- Fuel: Diesel
- Standard power: 140 bhp, remapped: 178 bhp (+38 bhp, +27%)
- Standard torque: 304 Nm, remapped: 397 Nm (+93 Nm, +31%)
- Service: stage 1 ECU remap, fully dyno tested
What a remap does for a diesel Alfa Romeo 166
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.
For reference, JTD and Multijet are the Fiat Group names for its common-rail diesel engines.
How the Alfa Romeo 166 JTD 2.4 140 compares
Ranked by power gain against the other diesel 166 engines (7 in total), the JTD 2.4 140 is 3rd, 2 bhp above the 166 diesel average of 36 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 38 bhp and 93 Nm sits at or above that benchmark.
Book vehicle tuning for your Alfa Romeo 166 in Portsmouth
Remap Experts Portsmouth is part of the UK-wide Remap Experts network. We regularly work with drivers in Hayling Island, Winchester, Southsea, Newport and Gosport and nearby areas of the South East.
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 Southampton, Sussex and Basingstoke, those neighbouring Remap Experts sites can help too.

Get a quote for your Alfa Romeo 166 JTD 2.4 140
Send your registration and we will confirm the exact remap, the price and the next available slot.
Included
What we can do for your Alfa Romeo 166
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 166 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