Alfa Romeo Giulietta 2010> 1.6 JTDM 105bhp remap figures
The Alfa Romeo Giulietta 1.6 JTDM 105bhp (2010>) is a diesel 1.6L model making 105bhp and 320Nm as standard. After a Stage 1 ECU remap we expect 155bhp and 366Nm - up to 50bhp and 46Nm more than stock.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 105 bhp | 155 bhp | +50 bhp |
| Torque | 320 Nm | 366 Nm | +46 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 105 bhp | 320 Nm | |
| Stage 1Maximum software-only performance | 155 bhp | 366 Nm | +50 bhp +46 Nm |
| Stage 1 EcoPerformance with economy in mind | 143 bhp | 362 Nm | +38 bhp +42 Nm |
| Eco mapEconomy first | 139 bhp | 360 Nm | +34 bhp +40 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your Giulietta
On a diesel the biggest change is normally torque: the remap changes how much fuel and boost the ECU allows across the rev range, so pulling power arrives earlier and holds on longer.
This car is listed with a Bosch EDC16C39 engine control unit. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Alfa Romeo Giulietta 1.6 JTDM 105bhp?
We expect 155bhp and 366Nm against 105bhp and 320Nm as standard: up to +50bhp and +46Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Alfa Romeo Giulietta 1.6 JTDM 105bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 143bhp and 362Nm expected. The Eco map is economy first: 139bhp and 360Nm. Both still sit above the standard 105bhp and 320Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Alfa Romeo Giulietta figures
Other diesel variants
- 1.6 JTDM-2 105bhp 2014>
- 1.6 JTDM-2 118bhp 2014>
- 2.0 JTDM 140bhp 2010>
- 2.0 JTDM-2 150bhp 2014>
- 2.0 JTDM 170bhp 2010>
- 2.0 JTDM-2 TCT 175bhp 2014>
All diesel Giulietta variants · Giulietta 2010> overview · All Alfa Romeo figures