BMW 4 Series F32 Chiptuning – ECU Remap

At a glance

BMW 4 Series F32: 20 engines — 7 petrol and 13 diesel. The gain is +27 to +77 hp, with up to +138 Nm more torque. GAN GTL from 219 EUR, GAN GT from 329 EUR.

20

engines

7 petrol · 13 diesel

+77hp

best in this generation: 435i (sensor1) 306 → 383 hp

gain range +27…+77 hp

+138Nm

max torque gain

435d, GT

from 219EUR

tuning module price

GAN GTL from 219 EUR · GAN GT from 329 EUR

Power gains

All BMW 4 Series F32 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 · 13 engines
430d286 hp / 600 Nm	286 hp359 hp / 734 Nm	+73 hp+134 Nm	GTL — 249 EUR · 348 hp GT — 399 EUR · 359 hp	Select →
425d224 hp / 450 Nm	224 hp286 hp / 563 Nm	+62 hp+113 Nm	GTL — 249 EUR · 277 hp GT — 399 EUR · 286 hp	Select →
425d211 hp / 450 Nm	211 hp270 hp / 563 Nm	+59 hp+113 Nm	GTL — 249 EUR · 261 hp GT — 399 EUR · 270 hp	Select →
420d200 hp / 420 Nm	200 hp256 hp / 528 Nm	+56 hp+108 Nm	GTL — 249 EUR · 248 hp GT — 399 EUR · 256 hp	Select →
430d258 hp / 560 Nm	258 hp314 hp / 655 Nm	+56 hp+95 Nm	GTL — 249 EUR · 306 hp GT — 399 EUR · 314 hp	Select →
435d313 hp / 630 Nm	313 hp362 hp / 768 Nm	+49 hp+138 Nm	GTL — 279 EUR · 355 hp GT — 459 EUR · 362 hp	Select →
420d163 hp / 400 Nm	163 hp210 hp / 505 Nm	+47 hp+105 Nm	GTL — 249 EUR · 203 hp GT — 399 EUR · 210 hp	Select →
418d136 hp / 320 Nm	136 hp176 hp / 405 Nm	+40 hp+85 Nm	GTL — 219 EUR · 170 hp GT — 329 EUR · 176 hp	Select →
420d190 hp / 400 Nm	190 hp225 hp / 505 Nm	+35 hp+105 Nm	GTL — 249 EUR · 220 hp GT — 399 EUR · 225 hp	Select →
418d143 hp / 320 Nm	143 hp177 hp / 405 Nm	+34 hp+85 Nm	GTL — 219 EUR · 172 hp GT — 329 EUR · 177 hp	Select →
420d184 hp / 380 Nm	184 hp218 hp / 481 Nm	+34 hp+101 Nm	GTL — 249 EUR · 213 hp GT — 399 EUR · 218 hp	Select →
418d150 hp / 330 Nm	150 hp180 hp / 421 Nm	+30 hp+91 Nm	GTL — 249 EUR · 176 hp GT — 399 EUR · 180 hp	Select →
425d218 hp / 450 Nm	218 hp245 hp / 563 Nm	+27 hp+113 Nm	GTL — 249 EUR · 241 hp GT — 399 EUR · 245 hp	Select →
Petrol · 7 engines
435i (sensor1)306 hp / 400 Nm	306 hp383 hp / 505 Nm	+77 hp+105 Nm	GTL — 279 EUR · 371 hp GT — 459 EUR · 383 hp	Select →
435i (sensor2)306 hp / 400 Nm	306 hp383 hp / 505 Nm	+77 hp+105 Nm	GTL — 279 EUR · 371 hp GT — 459 EUR · 383 hp	Select →
440i326 hp / 450 Nm	326 hp401 hp / 550 Nm	+75 hp+100 Nm	GTL — 279 EUR · 390 hp GT — 459 EUR · 401 hp	Select →
440i360 hp / 500 Nm	360 hp432 hp / 600 Nm	+72 hp+100 Nm	GTL — 279 EUR · 421 hp GT — 459 EUR · 432 hp	Select →
435i340 hp / 400 Nm	340 hp409 hp / 478 Nm	+69 hp+78 Nm	GTL — 279 EUR · 399 hp GT — 459 EUR · 409 hp	Select →
430i252 hp / 350 Nm	252 hp319 hp / 445 Nm	+67 hp+95 Nm	GTL — 249 EUR · 309 hp GT — 399 EUR · 319 hp	Select →
420i 07/2015->184 hp / 270 Nm	184 hp236 hp / 349 Nm	+52 hp+79 Nm	GTL — 249 EUR · 228 hp GT — 399 EUR · 236 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.

All BMW 4 Series generations BMW 4 Series (F36) 2014-20 BMW 4 Series (G22, G23, G26) 2020->

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:

430d 258 / 286 hp425d 211 / 218 / 224 hp420d 163 / 184 / 190 / 200 hp418d 136 / 143 / 150 hp440i 326 / 360 hp

GAN tuning box for the BMW 4 Series F32

BMW 4 Series F32 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

+77 hpbest in this generation
435i (sensor1) 306 hp → 383 hp. The other engines gain at least +27 hp; check the table for each one.
+138 Nmfor diesels
Diesels gain mostly torque: +85 to +138 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 BMW 4 Series F32

GAN GT from 329 EUR GAN GTL from 219 EUR

Find your engine in the table

FAQs

BMW 4 Series F32 remap: common questions

Which tuning box do I need for the BMW 4 Series F32?

Every engine in this generation is turbocharged, so it takes the GAN GT or GAN GTL. Find your engine in the table above – each row shows the box and its price.

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.