Mercedes-Benz CLS C257 - 2021 -> 53 AMG 435hp
Real standard and upgraded performance figures for the 53 AMG 435hp engine in the Mercedes-Benz CLS C257 - 2021 ->.
Below: measured output for the 53 AMG 435hp in the Mercedes-Benz CLS C257 - 2021 ->, standard vs. remapped, in both horsepower and torque.
| Horsepower (HP) | Torque (Nm) | |
|---|---|---|
| Standard | 435 | 520 |
| Stage 1 | 460 | 620 |
| Stage 2 | 472 | 670 |
- Make
- Mercedes-Benz
- Model
- CLS
- Generation
- C257 - 2021 ->
- Engine
- 53 AMG 435hp
- Fuel type
- Turbo-Petrol
Frequently asked questions
Is Stage 1 tuning safe for the Mercedes-Benz CLS C257 - 2021 -> 53 AMG 435hp?
Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.
How much more power does the 53 AMG 435hp make after tuning?
Standard output is 435 HP / 520 Nm; Stage 1 on this engine typically reaches 460 HP / 620 Nm. Exact results can vary slightly with fuel quality and vehicle condition.
How long does a Mercedes-Benz CLS C257 - 2021 -> 53 AMG 435hp remap take?
Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.
Can the 53 AMG 435hp be reverted to its original file?
Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.