Expected gains of +30 BHP and +100 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Mercedes-Benz GLC 43 AMG 390hp? A Stage 1 remap can take this 2019 - 2023 petrol engine from 390 BHP to 420 BHP and from 520 Nm to 620 Nm of torque (naturally aspirated). This engine scores 4.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Mercedes-Benz GLC can achieve.
The Mercedes-Benz GLC 43 AMG 390hp is a 3.0L naturally aspirated petrol engine producing 390 BHP and 520 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 420 BHP and 620 Nm — a gain of around 30 BHP (8%) and 100 Nm (19%).
This engine has limited remap suitability, with gains weighted towards torque — you will notice the difference most strongly in mid-range pulling power and in-gear acceleration. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 200d 163hp | 163 → 210 | +47 | 360 → 440 | +80 | Good (7.5/10) |
| 220d 194hp | 194 → 220 | +26 | 400 → 460 | +60 | Good (6.5/10) |
| 200 - 197hp | 197 → 270 | +73 | 320 → 450 | +130 | Good (6.5/10) |
| 250/260 - 211hp | 211 → 230 | +19 | 350 → 420 | +70 | Moderate (4.5/10) |
| 300d 245hp | 245 → 265 | +20 | 500 → 560 | +60 | Good (6.5/10) |
| 300 - 258hp | 258 → 275 | +17 | 370 → 450 | +80 | Moderate (4.5/10) |
| 300de 306hp | 306 → 335 | +29 | 700 → 760 | +60 | Limited (3.5/10) |
| 300e 320hp | 320 → 350 | +30 | 700 → 760 | +60 | Limited (3.5/10) |
| 400d 330hp | 330 → 380 | +50 | 700 → 820 | +120 | Good (7/10) |
| 63 AMG 476hp | 476 → 570 | +94 | 650 → 820 | +170 | Moderate (5.5/10) |
| 63 AMG S 510hp | 510 → 570 | +60 | 700 → 820 | +120 | Moderate (4.5/10) |
Get a personalised remap quote for your Mercedes-Benz GLC. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.