Performance Chip Tuning for Mercedes-Benz S W221

The short answer

S W221: 26 engines — 12 gas and 12 diesel and 2 hybrids. Gains run from +22 to +99 hp, with up to +150 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 199 EUR.

26

engines

12 gas · 12 diesel

+99hp

best in this generation: 63 AMG 5.5 544 → 643 hp

gain range +22…+99 hp

+150Nm

max torque gain

420 CDI, GT

19

turbo engines

7 naturally aspirated — GA / GA+

Horsepower and torque gains

All S W221 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 · 12 engines
420 CDI320 hp / 730 Nm	320 hp399 hp / 880 Nm	+79 hp+150 Nm	GTL — 279 EUR · 387 hp GT — 459 EUR · 399 hp	Select →
450 CDI320 hp / 730 Nm	320 hp399 hp / 880 Nm	+79 hp+150 Nm	GTL — 279 EUR · 387 hp GT — 459 EUR · 399 hp	Select →
350 BlueTEC258 hp / 620 Nm	258 hp326 hp / 756 Nm	+68 hp+136 Nm	GTL — 249 EUR · 316 hp GT — 399 EUR · 326 hp	Select →
320 CDI235 hp / 540 Nm	235 hp299 hp / 666 Nm	+64 hp+126 Nm	GTL — 249 EUR · 289 hp GT — 399 EUR · 299 hp	Select →
320 CDI BlueEF (2008-2009)235 hp / 540 Nm	235 hp299 hp / 666 Nm	+64 hp+126 Nm	GTL — 249 EUR · 289 hp GT — 399 EUR · 299 hp	Select →
350 CDI BlueEF 2009->235 hp / 540 Nm	235 hp299 hp / 666 Nm	+64 hp+126 Nm	GTL — 249 EUR · 289 hp GT — 399 EUR · 299 hp	Select →
300 BlueTEC204 hp / 500 Nm	204 hp247 hp / 605 Nm	+43 hp+105 Nm	GTL — 249 EUR · 241 hp GT — 399 EUR · 247 hp	Select →
250 CDI BlueEF204 hp / 500 Nm	204 hp246 hp / 620 Nm	+42 hp+120 Nm	GTL — 249 EUR · 240 hp GT — 399 EUR · 246 hp	Select →
350 BlueTEC249 hp / 620 Nm	249 hp291 hp / 725 Nm	+42 hp+105 Nm	GTL — 249 EUR · 284 hp GT — 399 EUR · 291 hp	Select →
350 BlueTEC (U pec)243 hp / 617 Nm	243 hp284 hp / 722 Nm	+41 hp+105 Nm	GTL — 249 EUR · 277 hp GT — 399 EUR · 284 hp	Select →
300 BlueTEC231 hp / 300 Nm	231 hp270 hp / 351 Nm	+39 hp+51 Nm	GTL — 249 EUR · 263 hp GT — 399 EUR · 270 hp	Select →
320 CDI211 hp / 540 Nm	211 hp246 hp / 662 Nm	+35 hp+122 Nm	GTL — 249 EUR · 241 hp GT — 399 EUR · 246 hp	Select →
Gasoline · 12 engines
63 AMG 5.5544 hp / 800 Nm	544 hp643 hp / 947 Nm	+99 hp+147 Nm	GTL — 379 EUR · 628 hp GT — 519 EUR · 643 hp	Select →
500435 hp / 700 Nm	435 hp519 hp / 836 Nm	+84 hp+136 Nm	GTL — 349 EUR · 506 hp GT — 519 EUR · 519 hp	Select →
400367 hp / 500 Nm	367 hp429 hp / 585 Nm	+62 hp+85 Nm	GTL — 279 EUR · 418 hp GT — 459 EUR · 429 hp	Select →
320272 hp / 400 Nm	272 hp318 hp / 468 Nm	+46 hp+68 Nm	GTL — 249 EUR · 310 hp GT — 399 EUR · 318 hp	Select →
400272 hp / 400 Nm	272 hp318 hp / 468 Nm	+46 hp+68 Nm	GTL — 249 EUR · 310 hp GT — 399 EUR · 318 hp	Select →
600 lang517 hp / 830 Nm	517 hp558 hp / 896 Nm	+41 hp+66 Nm	GA — 219 EUR · 558 hp GA+ — 219 EUR · 558 hp	Select →
63 AMG 6.2518 hp / 630 Nm	518 hp559 hp / 680 Nm	+41 hp+50 Nm	GA — 219 EUR · 559 hp GA+ — 219 EUR · 559 hp	Select →
500388 hp / 530 Nm	388 hp419 hp / 572 Nm	+31 hp+42 Nm	GA — 219 EUR · 419 hp GA+ — 219 EUR · 419 hp	Select →
300231 hp / 300 Nm	231 hp259 hp / 336 Nm	+28 hp+36 Nm	GA — 199 EUR · 259 hp GA+ — 199 EUR · 259 hp	Select →
450340 hp / 460 Nm	340 hp367 hp / 497 Nm	+27 hp+37 Nm	GA — 219 EUR · 367 hp GA+ — 219 EUR · 367 hp	Select →
350306 hp / 370 Nm	306 hp330 hp / 400 Nm	+24 hp+30 Nm	GA — 219 EUR · 330 hp GA+ — 219 EUR · 330 hp	Select →
350272 hp / 350 Nm	272 hp294 hp / 378 Nm	+22 hp+28 Nm	GA — 199 EUR · 294 hp GA+ — 199 EUR · 294 hp	Select →
Hybrid · 2 engines
500 Hybrid333 hp / 480 Nm	333 hp390 hp / 562 Nm	+57 hp+82 Nm	GTL — 279 EUR · 380 hp GT — 459 EUR · 390 hp	Select →
300 BlueTEC HYBRID231 hp / 750 Nm	231 hp270 hp / 878 Nm	+39 hp+128 Nm	GTL — 249 EUR · 263 hp GT — 399 EUR · 270 hp	Select →

stock powergain with GAN

Each engine gets its own performance chip: GAN GT / GTL or GAN GA / GA+. Prices are per performance chip and include the current discount.

All Mercedes-Benz S generations S (W220) ->2005 S (W222) 2013->

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:

350 272 / 306 hp400 272 / 367 hp500 388 / 435 hp350 BlueTEC 249 / 258 hp320 CDI 211 / 235 hp300 BlueTEC 204 / 231 hp

GAN tuning module for the Mercedes-Benz S W221

Mercedes-Benz S W221 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

+99 hpbest in this generation
63 AMG 5.5 544 hp → 643 hp. The other engines gain +22 hp and up; check the table for each one.
+150 Nmfor diesels
Diesels gain mostly torque: +51 to +150 Nm for towing and hauling.
up to +12%with the GAN GA+ on naturally aspirated engines
For 7 naturally aspirated engines: the GAN GA / GAN GA+ tuners; check the table for each engine’s numbers.
50 daystest drive
Enhanced performance or your money back, excluding shipping costs.

Prices for the Mercedes-Benz S W221

GAN GT from 399 EUR GAN GTL from 249 EUR GAN GA / GA+ from 199 EUR

Find your engine in the table

FAQ

Mercedes-Benz S W221 tuning FAQ

Which tuner do I need for my S W221?

Turbo engines take the GAN GT or GAN GTL; naturally aspirated engines take the GAN GA or GAN GA+. Find your engine in the table above – each row shows the tuner and the price.

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.