Performance Chip Tuning Mercedes-Benz SLK R171 (2004–2011)
6 engines · +20 to +29 hp
Mercedes-Benz SLK R171: 6 engines — 6 gas. Gains run from +20 to +29 hp, with up to +41 Nm more torque. GAN GA+ from 189 EUR.
All Mercedes-Benz SLK R171 engines: exact gains
STOCK output, output with GAN, gain and price for each module.
| Engine | STOCK → with GAN | Gain | Tuners and prices | |
|---|---|---|---|---|
| Gasoline · 6 engines | ||||
| 55 AMG 5.4360 hp / 510 Nm | +29 hp+41 Nm |
GA — 219 EUR · 389 hp GA+ — 219 EUR · 389 hp |
Select → | |
| 280231 hp / 300 Nm | +28 hp+36 Nm |
GA — 199 EUR · 259 hp GA+ — 199 EUR · 259 hp |
Select → | |
| 230 Kompressor 2.3197 hp / 280 Nm | +24 hp+34 Nm |
GA — 189 EUR · 221 hp GA+ — 189 EUR · 221 hp |
Select → | |
| 200 Kompressor 1.8184 hp / 250 Nm | +22 hp+30 Nm |
GA — 189 EUR · 206 hp GA+ — 189 EUR · 206 hp |
Select → | |
| 350272 hp / 350 Nm | +22 hp+28 Nm |
GA — 199 EUR · 294 hp GA+ — 199 EUR · 294 hp |
Select → | |
| 200 Kompressor 1.8163 hp / 240 Nm | +20 hp+29 Nm |
GA — 189 EUR · 183 hp GA+ — 189 EUR · 183 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:
Mercedes-Benz SLK R171 tune: what changes
More power and torque with no ECU flash and no new parts – the module only adjusts the engine sensor signals. Your factory warranty is preserved: the ECU software is never changed, 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
- +29 hpbest in this generation
55 AMG 5.4 360 hp → 389 hp. The other engines gain +20 hp and up; check the table for each one.
- up to +30%more power
GAN GT: up to 30%, GAN GTL: up to 25%, GAN GA+: up to 12%.
- 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.
Mercedes-Benz SLK R171 tuning FAQ
Which tuner do I need for my Mercedes-Benz SLK R171?
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.