Alfa Romeo Giulietta · Stage 1

Alfa Romeo Giulietta 2.0 JTDm Stage 1 Remap

Name: Alfa Romeo Giulietta 2.0 JTDm Stage 1 Remap
Brand: Alfa Romeo

On Alfa Romeo Giulietta 2.0 JTDm diesel engines a Stage 1 remap recalibrates the fuel quantity, injection timing, boost pressure and torque limiter maps. No hardware is changed and the original software is backed up. The same engine is sold with different stock outputs across generations, so the gain depends on your version.

How much bhp does Alfa Romeo Giulietta 2.0 JTDm chip tuning add?

It depends on the generation and the stock output. 2.0 JTDm engines with 140–175 bhp reach 180–215 bhp with a Stage 1 remap; the largest gain is +65 bhp (2.0 JTDm 150hp). Pick your version in the table below.

Book an appointment Alfa Romeo Giulietta: all engines & Stage 1

Alfa Romeo Giulietta 2.0 JTDm: Stage 1 figures by generation and year

Year / chassis: 2016+

Engine	Power	Torque	Gain
Alfa Romeo Giulietta 2.0 JTDm 150hp	150 → 215 bhp	380 → 460 Nm	+65 bhp
Alfa Romeo Giulietta 2.0 JTDm 175hp	175 → 205 bhp	350 → 425 Nm	+30 bhp

Year / chassis: 2014 - 2016

Engine	Power	Torque	Gain
Alfa Romeo Giulietta 2.0 JTDm 150hp	150 → 180 bhp	380 → 440 Nm	+30 bhp
Alfa Romeo Giulietta 2.0 JTDm 175hp	175 → 205 bhp	350 → 425 Nm	+30 bhp

Year / chassis: 2010 - 2014

Engine	Power	Torque	Gain
Alfa Romeo Giulietta 2.0 JTDm 140hp	140 → 180 bhp	320 → 420 Nm	+40 bhp
Alfa Romeo Giulietta 2.0 JTDm 170hp	170 → 200 bhp	350 → 425 Nm	+30 bhp

In Taiwan

Where can this be done near you?

GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.

ENGINE FAMILY

About the Fiat / Alfa Romeo 1.6 and 2.0 Multijet (JTDM)

The 1.6 and 2.0 Multijet power the Fiat Tipo, Bravo, Doblo, 500X, Alfa Romeo Giulietta, 159, Jeep Renegade and Compass, from 105 to 170 hp. They are Fiat's own modern common-rail engines, not PSA-derived.

How a Stage 1 remap works on the Alfa Romeo Giulietta 2.0 JTDm

Stage 1 recalibrates rail pressure, injection duration, boost and the torque limiter. A full mid-range torque gain results; on common versions such as the Tipo 1.6 Multijet overtaking confidence improves clearly. On DCT automatic cars the torque limit is respected.

Pre-remap checklist

DPF load and regeneration history.
EGR valve and cooler.
Boost leaks and intercooler hoses.
Dual-mass flywheel and clutch.

This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.

Frequently asked questions

How much bhp does Alfa Romeo Giulietta 2.0 JTDm chip tuning add?

It depends on the generation and the stock output. 2.0 JTDm engines with 140–175 bhp reach 180–215 bhp with a Stage 1 remap; the largest gain is +65 bhp (2.0 JTDm 150hp). Pick your version in the table below.

What is the difference between Stage 1 and Stage 2 on the Alfa Romeo Giulietta 2.0 JTDm?

Stage 1 is software only: no part of the car is changed and the figures in the table apply to this software. Stage 2 is software prepared for hardware changes such as the exhaust, intercooler or intake; the hardware comes first, then the software.

Will chip tuning damage the engine?

No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.

Will my fuel consumption go up?

With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.

How long does it take? Do I leave the car?

Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.

Can I go back to stock later?

Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.

What is checked on the Alfa Romeo Giulietta 2.0 JTDm before remapping?

Before working on the Fiat / Alfa Romeo 1.6 and 2.0 Multijet (JTDM) we check: DPF load and regeneration history. EGR valve and cooler. Boost leaks and intercooler hoses. Dual-mass flywheel and clutch. If something needs attention, maintenance comes first; the remap is applied to a healthy engine.