Performance Chip Tuning BMW 1 Series F20 (2011–2019)
25 engines · +24 to +80 hp
BMW 1 Series F20: 25 engines — 11 gas and 14 diesel. Gains run from +24 to +80 hp, with up to +113 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR.
All BMW 1 Series F20 engines: exact gains
STOCK output, output with GAN, gain and price for each module. Diesel and gasoline engines are listed separately.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Diesel · 14 engines | ||||
| 125d 03/2015->224 hp / 450 Nm | +62 hp+113 Nm |
GTL — 249 EUR · 277 hp GT — 399 EUR · 286 hp |
Select → | |
| 125d211 hp / 450 Nm | +59 hp+113 Nm |
GTL — 249 EUR · 261 hp GT — 399 EUR · 270 hp |
Select → | |
| 120d200 hp / 420 Nm | +56 hp+108 Nm |
GTL — 249 EUR · 248 hp GT — 399 EUR · 256 hp |
Select → | |
| 120d163 hp / 340 Nm | +47 hp+93 Nm |
GTL — 249 EUR · 203 hp GT — 399 EUR · 210 hp |
Select → | |
| 116d Efficient Dynamics116 hp / 260 Nm | +35 hp+77 Nm |
GTL — 219 EUR · 146 hp GT — 329 EUR · 151 hp |
Select → | |
| 120d190 hp / 400 Nm | +35 hp+105 Nm |
GTL — 249 EUR · 220 hp GT — 399 EUR · 225 hp |
Select → | |
| 116d 03/2015->116 hp / 270 Nm | +34 hp+78 Nm |
GTL — 219 EUR · 145 hp GT — 329 EUR · 150 hp |
Select → | |
| 118d143 hp / 320 Nm | +34 hp+85 Nm |
GTL — 219 EUR · 172 hp GT — 329 EUR · 177 hp |
Select → | |
| 120d184 hp / 380 Nm | +34 hp+101 Nm |
GTL — 249 EUR · 213 hp GT — 399 EUR · 218 hp |
Select → | |
| 118d 03/2015->150 hp / 320 Nm | +30 hp+91 Nm |
GTL — 249 EUR · 176 hp GT — 399 EUR · 180 hp |
Select → | |
| 114d95 hp / 235 Nm | +29 hp+71 Nm |
GTL — 219 EUR · 119 hp GT — 329 EUR · 124 hp |
Select → | |
| 125d218 hp / 450 Nm | +27 hp+113 Nm |
GTL — 249 EUR · 241 hp GT — 399 EUR · 245 hp |
Select → | |
| 116d116 hp / 260 Nm | +24 hp+81 Nm |
GTL — 219 EUR · 136 hp GT — 329 EUR · 140 hp |
Select → | |
| 118d136 hp / 300 Nm | +24 hp+80 Nm |
GTL — 219 EUR · 156 hp GT — 329 EUR · 160 hp |
Select → | |
| Gasoline · 11 engines | ||||
| M135i 03/2015->326 hp / 450 Nm | +80 hp+113 Nm |
GTL — 279 EUR · 394 hp GT — 459 EUR · 406 hp |
Select → | |
| M 135i320 hp / 450 Nm | +79 hp+113 Nm |
GTL — 279 EUR · 387 hp GT — 459 EUR · 399 hp |
Select → | |
| M140i340 hp / 500 Nm | +76 hp+100 Nm |
GTL — 279 EUR · 405 hp GT — 459 EUR · 416 hp |
Select → | |
| 125i224 hp / 310 Nm | +62 hp+113 Nm |
GTL — 249 EUR · 277 hp GT — 399 EUR · 286 hp |
Select → | |
| 135i 03/2011-> (sensor1)306 hp / 400 Nm | +52 hp+68 Nm |
GTL — 279 EUR · 349 hp GT — 459 EUR · 358 hp |
Select → | |
| 135i 03/2011-> (sensor2)306 hp / 400 Nm | +52 hp+68 Nm |
GTL — 279 EUR · 349 hp GT — 459 EUR · 358 hp |
Select → | |
| 120i184 hp / 270 Nm | +42 hp+80 Nm |
GTL — 249 EUR · 220 hp GT — 399 EUR · 226 hp |
Select → | |
| 118i (1499 ccm)136 hp / 220 Nm | +40 hp+66 Nm |
GTL — 219 EUR · 170 hp GT — 329 EUR · 176 hp |
Select → | |
| 120 i (1598 ccm)177 hp / 250 Nm | +37 hp+53 Nm |
GTL — 249 EUR · 209 hp GT — 399 EUR · 214 hp |
Select → | |
| 116i109 hp / 180 Nm | +32 hp+52 Nm |
GTL — 219 EUR · 136 hp GT — 329 EUR · 141 hp |
Select → | |
| 114i102 hp / 180 Nm | +30 hp+52 Nm |
GTL — 219 EUR · 128 hp GT — 329 EUR · 132 hp |
Select → | |
Each engine gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.
Not sure which engine you have?
The badge alone isn’t enough: in this generation, the same engine came with different horsepower ratings, each with its own calibration. Check the horsepower in your owner’s manual or vehicle documents and find the matching row.
Same badge, different factory power outputs in this generation:
BMW 1 Series F20 tune: what changes
The module plugs in between the sensors and the engine control unit (ECU) and adjusts their signals. It never rewrites your ECU software: your factory warranty is preserved, and the module can be removed at any time.
- Bluetoothswitch modes from your phone
- 18 mapsto fine-tune your engine

- 15 minutesplug-and-play install
- IP67water and dust protection
- +80 hpbest in this generation
M135i 03/2015-> 326 hp → 406 hp. The other engines gain +24 hp and up; check the table for each one.
- +113 Nmfor diesels
Diesels gain mostly torque: +71 to +113 Nm for towing and hauling.
- GAN APPpower control via smartphone
Switch between SPORT, DYNAMIC, ECO and STOCK in the GAN app.
- 50 daystest drive
Enhanced performance or your money back, excluding shipping costs.
What makes the BMW 1 Series F20 special
BMW F20 tune: the build date decides, and the March 2015 facelift is the line
BMW never sold the F20 hatchback new in the U.S., so an F20 over here is a gray-market import. The US-market 1 Series was the earlier coupe and convertible, the E82, which has its own page in the catalog. June 2011 to June 2019 is the F20 run, a five-door 1 Series hatchback, and the three-door version is called the F21. The 2024 1 Series, the F70, is a different generation. The March 2015 facelift changed the engines, so the right GAN performance chip for an F20 depends on the build date. Before the facelift, the gas cars ran the N13, the N20 and, in the M135i, the N55, while the diesels ran the N47.
By 2015 the gas engines had started moving to the B38 and B48 and the diesels to the B47 and B37; the last N13, N20 and N55 cars left in 2016. The European 120d rose from 184 hp and 380 Nm to 190 hp and 400 Nm, while the 118d rose from 143 hp to 150 hp. The 125d went from 218 hp to 224 hp at 450 Nm, and later cars came only with the eight-speed automatic. The M135i first made 320 hp, then 326 hp; the M140i followed in July 2016 with the B58 engine and 340 hp. The 135i of that U.S. coupe, a turbocharged inline-six that went from twin turbos to a single twin-scroll turbo for 2011, is a common tuning platform, but it is not the F20 M135i.
GAN GT figures for the 120d
For the 120d at 190 hp and 400 Nm, the GAN GT delivers 225 hp and 505 Nm. Looking for an M135i performance chip? Its gain is in the table too, and every gain is stated for the engine type, not measured on your car.
BMW 1 Series F20 tuning FAQ
BMW F20 118d or 120d: does the N47 timing chain matter before a tune?
A rattle is the warning sign, and the N47 chain sits at the back of the engine. Have it checked from about 100 thousand km, since chain failures are known on BMW diesels up to 2015. The B47, which took over in March 2015, is a different engine.
Stage 1 or a GAN performance chip on a BMW 118d: what is the difference?
Stage 1 normally means a software change, and a flash tune swaps the factory software in the engine control unit. A GAN performance chip doesn't replace that software. The ECU software is never changed and the module can be removed at any time, so your factory warranty is preserved.
Is my BMW 116i F20 with 109 hp the older 136 hp engine?
No. The 116i with 136 hp and the 1.6-liter N13 was built until January 2015. After the facelift the 116i has the 1.5-liter three-cylinder B38 with 109 hp and 180 Nm, and that is the engine in the catalog.
Is a tuning module the same as a Stage 1 tune?
Not quite. Stage 1 usually means an ECU flash tune 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.