Chiptuning Fiat Stilo
10 engines · +12 to +43 hp
Fiat Stilo: 10 engines — 2 petrol and 8 diesel. The gain is +12 to +43 hp, with up to +86 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR. GAN GA+ from 189 EUR.
All Fiat Stilo 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 · 8 engines | ||||
| 1.9 Multijet 16V150 hp / 320 Nm | +43 hp+86 Nm |
GTL — 249 EUR · 187 hp GT — 399 EUR · 193 hp |
Select → | |
| 1.9 JTD140 hp / 305 Nm | +41 hp+86 Nm |
GTL — 219 EUR · 175 hp GT — 329 EUR · 181 hp |
Select → | |
| 1.9 JTD126 hp / 270 Nm | +38 hp+76 Nm |
GTL — 219 EUR · 158 hp GT — 329 EUR · 164 hp |
Select → | |
| 1.9 JTD120 hp / 280 Nm | +36 hp+81 Nm |
GTL — 219 EUR · 151 hp GT — 329 EUR · 156 hp |
Select → | |
| 1.9 JTD116 hp / 255 Nm | +35 hp+80 Nm |
GTL — 219 EUR · 146 hp GT — 329 EUR · 151 hp |
Select → | |
| 1.9 JTD101 hp / 200 Nm | +30 hp+60 Nm |
GTL — 219 EUR · 127 hp GT — 329 EUR · 131 hp |
Select → | |
| 1.9 JTD90 hp / 200 Nm | +27 hp+60 Nm |
GTL — 219 EUR · 113 hp GT — 329 EUR · 117 hp |
Select → | |
| 1.9 JTD80 hp / 196 Nm | +24 hp+59 Nm |
GTL — 219 EUR · 100 hp GT — 329 EUR · 104 hp |
Select → | |
| Petrol · 2 engines | ||||
| 2.4i167 hp / 221 Nm | +20 hp+27 Nm |
GA — 189 EUR · 187 hp GA+ — 189 EUR · 187 hp |
Select → | |
| 1.6i103 hp / 145 Nm | +12 hp+17 Nm |
GA — 189 EUR · 115 hp GA+ — 189 EUR · 115 hp |
Select → | |
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:
Fiat Stilo 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
- +43 hpbest in this generation
1.9 Multijet 16V 150 hp → 193 hp. The other engines gain at least +12 hp; check the table for each one.
- +86 Nmfor diesels
Diesels gain mostly torque: +59 to +86 Nm, which helps with overtaking and towing.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 2 naturally aspirated engines: GAN GA / GAN GA+ tuning boxes; check the table for each engine’s figure.
- 50 daystest drive
Feel the difference or get your money back, excluding delivery costs.
What makes the Fiat Stilo special
Fiat Stilo remap: petrol first, diesel close behind
Of the Stilos registered in Germany between 2002 and 2009, about 71% ran on petrol and about 28% on diesel. In Britain the Stilo was sold new as a three-door or five-door hatchback and as the MultiWagon estate, in Active, Active Sport, Dynamic, GT and Abarth trims. Tuning a Stilo with a box therefore splits into two groups: the 1.9 diesels and the petrol engines. Fiat Stilo 1.9 JTD remap: the catalogue lists 80, 90, 101, 116, 120, 126, 140 and 150 hp, and each takes the GAN GT. UK used-car reviews cover the 1.9 JTD in 80 and 115 hp form, and the 115 hp car is the catalogue's 116 hp row.
UK reviewers describe the 1.9 JTD as powerful, refined and economical. The 103 hp 1.6 16V takes the GAN GA+. So does the five-cylinder 2.4 20V, which appears only in a few sporty trims such as the Abarth. The petrol 1.2, the 90 hp 1.4 and the 1.8 are not in the catalogue. Sales began in autumn 2001, and production of the hatchbacks ended in November 2006.
Fiat Stilo remap: common questions
Stilo 1.9 JTD 115 remap: what does the GAN GT add?
The catalogue rates this engine at 116 hp; the GAN GT brings it to 151 hp, a gain of 35 hp. The 1.9 JTD is a turbodiesel, so the GAN GT is rated at up to 30% more power on it. Treat these as catalogue gains for this engine type, not a dyno reading of your own car.
How much does the GAN GA+ add to the Stilo 1.6 16V of 103 hp?
GAN rates the GA+ at up to 12% more power, and the catalogue row shows a gain of 12 hp.
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.