Performance Chip Tuning Mercedes-Benz SLK R172 (2011–2016)
6 engines · +24 to +57 hp
Mercedes-Benz SLK R172: 6 engines — 5 gas and 1 diesel. Gains run from +24 to +57 hp, with up to +120 Nm more torque. GAN GTL from 249 EUR, GAN GT from 399 EUR. GAN GA+ from 219 EUR.
All Mercedes-Benz SLK R172 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 · 1 engine | ||||
| 250 CDI BlueEF204 hp / 500 Nm | +42 hp+120 Nm |
GTL — 249 EUR · 240 hp GT — 399 EUR · 246 hp |
Select → | |
| Gasoline · 5 engines | ||||
| 250 CGI BlueEF204 hp / 310 Nm | +57 hp+87 Nm |
GTL — 249 EUR · 252 hp GT — 399 EUR · 261 hp |
Select → | |
| 200184 hp / 300 Nm | +52 hp+85 Nm |
GTL — 249 EUR · 228 hp GT — 399 EUR · 236 hp |
Select → | |
| 200 CGI BlueEF184 hp / 270 Nm | +52 hp+79 Nm |
GTL — 249 EUR · 228 hp GT — 399 EUR · 236 hp |
Select → | |
| 300245 hp / 370 Nm | +48 hp+90 Nm |
GTL — 249 EUR · 286 hp GT — 399 EUR · 293 hp |
Select → | |
| 350306 hp / 370 Nm | +24 hp+30 Nm |
GA — 219 EUR · 330 hp GA+ — 219 EUR · 330 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?
Find your engine by its horsepower – check your window sticker or decode your VIN. Each version has its own calibration.
Mercedes-Benz SLK R172 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
- +57 hpbest in this generation
250 CGI BlueEF 204 hp → 261 hp. The other engines gain +24 hp and up; check the table for each one.
- +120 Nmfor diesels
Diesels gain mostly torque: +120 to +120 Nm for towing and hauling.
- up to +12%with the GAN GA+ on naturally aspirated engines
For 1 naturally aspirated engine: 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.
Mercedes-Benz SLK R172 tuning FAQ
Which tuner do I need for my Mercedes-Benz SLK R172?
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.