Alfa Romeo GT JTD 1.9 Multijet (JTDm) 150
Remapping Northampton
Alfa Romeo GT JTD 1.9 Multijet (JTDm) 150 in Northampton. 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 GT JTD 1.9 Multijet (JTDm) 150: standard vs remapped
Diesel engine. Indicative stage 1 figures, fully dyno tested.
Power
+37 bhp · +25%- Standard150 bhp
- Remapped187 bhp
Torque
+70 Nm · +23%- Standard305 Nm
- Remapped375 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 Alfa Romeo GT JTD 1.9 Multijet (JTDm) 150 makes 150 bhp and 305 Nm. With Remap Experts in Northampton it moves to 187 bhp and 375 Nm, which adds 37 bhp (25%) and 70 Nm (23%).
Figures are indicative stage 1 estimates for a healthy diesel Alfa Romeo GT; results vary with the condition of the vehicle.
Alfa Romeo GT JTD 1.9 Multijet (JTDm) 150 remap figures
- Fuel: Diesel
- Standard power: 150 bhp, remapped: 187 bhp (+37 bhp, +25%)
- Standard torque: 305 Nm, remapped: 375 Nm (+70 Nm, +23%)
- Service: stage 1 ECU remap, fully dyno tested
Diesel Alfa Romeo GT: what changes with a remap
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.
Alfa Romeo GT JTD 1.9 Multijet (JTDm) 150 against other GT engines
Ranked by power gain against the other diesel GT engines (2 in total), the JTD 1.9 Multijet (JTDm) 150 is 1st, 3 bhp above the GT diesel average of 34 bhp.
Across our whole catalogue the average diesel remap adds 34 bhp and 73 Nm, so this engine's 37 bhp and 70 Nm sits at or above that benchmark.
Alfa Romeo GT chip tuning in Northampton
Drivers in Northampton book through the Northampton Remap Experts site, one of our local sites across the UK. We regularly work with drivers in Newport Pagnell, Towcester, Silverstone, Rushden and Market Harborough and nearby areas of the East Midlands.
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 Leicester, Milton Keynes and Coventry, those neighbouring Remap Experts sites can help too.

Ready for remapping on your Alfa Romeo GT in Northampton?
Send your details and a specialist will confirm what is possible for your engine.
Included
What we can do for your Alfa Romeo GT
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