Alfa Romeo Giulietta Chiptuning – ECU Remap

At a glance

Alfa Romeo Giulietta: 18 engines — 9 petrol and 9 diesel. The gain is +31 to +65 hp, with up to +97 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR.

18

engines

9 petrol · 9 diesel

+65hp

best in this generation: 1.8 TBi 241 → 306 hp

gain range +31…+65 hp

+97Nm

max torque gain

2.0 JTDM, GT

from 219EUR

tuning module price

GAN GTL from 219 EUR · GAN GT from 329 EUR

Power gains

All Alfa Romeo Giulietta engines: exact gains

Standard output, output with GAN, the gain and the price for each box. Diesel and petrol engines are listed separately.

Engine	STOCK → with GAN	Gain	Tuning boxes and prices
Diesel · 9 engines
2.0 JTDM175 hp / 350 Nm	175 hp225 hp / 445 Nm	+50 hp+95 Nm	GTL — 249 EUR · 218 hp GT — 399 EUR · 225 hp	Select →
2.0 JTDM170 hp / 350 Nm	170 hp218 hp / 447 Nm	+48 hp+97 Nm	GTL — 249 EUR · 211 hp GT — 399 EUR · 218 hp	Select →
2.0 JTDM163 hp / 340 Nm	163 hp210 hp / 437 Nm	+47 hp+97 Nm	GTL — 249 EUR · 203 hp GT — 399 EUR · 210 hp	Select →
2.0 JTDM150 hp / 320 Nm	150 hp193 hp / 409 Nm	+43 hp+89 Nm	GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp	Select →
2.0 JTDM140 hp / 350 Nm	140 hp181 hp / 445 Nm	+41 hp+95 Nm	GTL — 219 EUR · 175 hp GT — 329 EUR · 181 hp	Select →
2.0 JTDM136 hp / 350 Nm	136 hp176 hp / 445 Nm	+40 hp+95 Nm	GTL — 219 EUR · 170 hp GT — 329 EUR · 176 hp	Select →
1.6 JTDM120 hp / 280 Nm	120 hp156 hp / 369 Nm	+36 hp+89 Nm	GTL — 219 EUR · 151 hp GT — 329 EUR · 156 hp	Select →
1.6 JTDM116 hp / 300 Nm	116 hp151 hp / 385 Nm	+35 hp+85 Nm	GTL — 219 EUR · 146 hp GT — 329 EUR · 151 hp	Select →
1.6 JTDM105 hp / 320 Nm	105 hp136 hp / 409 Nm	+31 hp+89 Nm	GTL — 219 EUR · 131 hp GT — 329 EUR · 136 hp	Select →
Petrol · 9 engines
1.8 TBi241 hp / 350 Nm	241 hp306 hp / 445 Nm	+65 hp+95 Nm	GTL — 249 EUR · 296 hp GT — 399 EUR · 306 hp	Select →
1.8 TBi235 hp / 340 Nm	235 hp299 hp / 433 Nm	+64 hp+93 Nm	GTL — 249 EUR · 289 hp GT — 399 EUR · 299 hp	Select →
1.8 TBi230 hp / 300 Nm	230 hp293 hp / 385 Nm	+63 hp+85 Nm	GTL — 249 EUR · 284 hp GT — 399 EUR · 293 hp	Select →
1.4 TB170 hp / 250 Nm	170 hp218 hp / 325 Nm	+48 hp+75 Nm	GTL — 249 EUR · 211 hp GT — 399 EUR · 218 hp	Select →
1.4 TB163 hp / 250 Nm	163 hp210 hp / 325 Nm	+47 hp+75 Nm	GTL — 249 EUR · 203 hp GT — 399 EUR · 210 hp	Select →
1.4 TB150 hp / 230 Nm	150 hp193 hp / 299 Nm	+43 hp+69 Nm	GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp	Select →
1.4 TB120 hp / 206 Nm	120 hp156 hp / 268 Nm	+36 hp+62 Nm	GTL — 219 EUR · 151 hp GT — 329 EUR · 156 hp	Select →
1.4 TB116 hp / 206 Nm	116 hp151 hp / 268 Nm	+35 hp+62 Nm	GTL — 219 EUR · 146 hp GT — 329 EUR · 151 hp	Select →
1.4 TB105 hp / 206 Nm	105 hp136 hp / 268 Nm	+31 hp+62 Nm	GTL — 219 EUR · 131 hp GT — 329 EUR · 136 hp	Select →

standard powergain with GAN

Each engine has its own tuning box: GAN GT / GTL or GAN GA / GA+. Prices are per box and include the current discount.

Not sure which engine you have?

The badge alone is not enough: in this generation, the same engine designation came in different power outputs, each with its own calibration. Check the power output in your registration document and find the matching row.

Same badge, different factory power outputs in this generation:

2.0 JTDM 136 / 140 / 150 / 163 / 170 / 175 hp1.6 JTDM 105 / 116 / 120 hp1.8 TBi 230 / 235 / 241 hp1.4 TB 105 / 116 / 120 / 150 / 163 / 170 hp

GAN tuning box for the Alfa Romeo Giulietta

Alfa Romeo Giulietta remap: what changes

The GAN box plugs in between the sensors and the engine control unit (ECU) and adjusts their signals, while a flash remap rewrites the ECU itself. Your manufacturer’s warranty is preserved: the ECU software is never changed, and the box can be removed at any time.

Bluetoothchange modes from your phone
18 mapsfine-tuning for your engine

15 minutesfitted to the factory connectors
IP67water and dust protection

+65 hpbest in this generation
1.8 TBi 241 hp → 306 hp. The other engines gain at least +31 hp; check the table for each one.
+97 Nmfor diesels
Diesels gain mostly torque: +85 to +97 Nm, which helps with overtaking and towing.
GAN APPpower control via smartphone
SPORT, DYNAMIC, ECO and STOCK modes in the GAN app.
50 daystest drive
Feel the difference or get your money back, excluding delivery costs.

Prices for the Alfa Romeo Giulietta

GAN GT from 329 EUR GAN GTL from 219 EUR

Find your engine in the table

About the generation

What makes the Alfa Romeo Giulietta special

Alfa Romeo Giulietta remap: Quadrifoglio Verde or 1.4 MultiAir

The Giulietta Quadrifoglio Verde (240 hp) and the 1.4 MultiAir (170 hp) sit far apart in factory output, yet each has its own set of GAN GT figures. Sold new in Britain from 2010 until production ended in 2020, the performance version is listed there as the Cloverleaf or QV. It uses the 1.75 TBi petrol engine, which our catalogue lists as the 1.8 TBi: 235 hp from 2010 and 240 hp from 2014. The QV engine came in two output levels, so the catalogue has a row for each. Those rows read 235 hp and 241 hp.

The 150 hp MultiAir is rated at 230 Nm in the catalogue, the 170 hp version at 250 Nm. The base 1.4 TB without MultiAir makes 120 hp and 206 Nm, and it stayed in the range until production ended in December 2020. UK tuners advertise Stage 1 remaps for the 1.4 MultiAir 170 hp, but those are provider claims; the GAN GT figures on this page come from the catalogue row for your exact engine. So check your engine and its output first: that decides which figures apply to your car.

Giulietta diesels and the year of your car

The 1.6 JTDM gave 105 hp from 2010 and 120 hp from 2015. The 2.0 JTDM came with 140, 150, 170 and 175 hp, all of them calibrations of the same engine. Each calibration belongs to certain years, so start with when your car was built. In Germany, petrol made up about three quarters of Giulietta registrations and diesel about a quarter.

The 105 hp petrol 1.4 left the range with the 2016 facelift. From the 2019 model year only three engines remained: the 1.4 TB 120, the 1.6 JTDM 120 and the 2.0 JTDM 170. On a 1.4 MultiAir, a warning light, rough running or the engine pulling on three cylinders points to the MultiAir actuator unit, so have that looked at before any box goes on.

FAQs

Alfa Romeo Giulietta remap: common questions

What does the GAN GT add to a Giulietta QV and a 1.4 MultiAir 170?

The 235 hp QV rises to 299 hp and 433 Nm with the GAN GT, and the 170 hp MultiAir to 218 hp and 325 Nm. Both engines are turbocharged, which puts them in the GAN GT range of up to 30% more power. Treat these as the stated gains for each engine type, not a dyno reading of your own car.

My Giulietta QV: 235 hp or 240 hp, and which GAN GT figures are mine?

Go by the build date: the engine made 235 hp until 2014 and 240 hp after that.

Giulietta 2.0 JTDM output: is it 140, 150, 170 or 175 hp?

Match the output to the year of the car, because one diesel was sold with four outputs. The catalogue gives GAN GT figures for each of the four.

Giulietta remap or GAN tuning box: what is the difference?

A flash remap rewrites the factory software, while a tuning box sits between the engine sensors and the ECU and adjusts their signals. The GAN module comes off in about a minute with no electronic or mechanical traces left. The factory ECU software is never changed, so your manufacturer's warranty is preserved, and you can remove the module whenever you like.

Do I need to tell my insurer about a GAN tuning box?

Tell them. A tuning box raises the output, and in Britain that is a declarable modification like any other performance change. Policies differ, so a quick call to your insurer before fitting is the safe route; the figures they will ask for are the stock and GAN outputs listed here.

Is a tuning module the same as a Stage 1 remap?

Not quite. Stage 1 usually means an ECU remap without replacing any parts. The tuning module also works without replacing parts, but it does not change the ECU software: it adjusts the sensor signals, comes off in about a minute, and the OFF button in the app restores the factory settings.