Mercedes-Benz GLA H247 - 2023 -> ... 45 AMG S - 421hp

Real standard and upgraded performance figures for the 45 AMG S - 421hp engine in the Mercedes-Benz GLA H247 - 2023 -> ....

Standard vs. upgraded performance for the Mercedes-Benz GLA H247 - 2023 -> ... 45 AMG S - 421hp, based on real files we've processed for this exact engine.

Horsepower (HP)Torque (Nm)
Standard421500
Stage 1470620
Stage 2494680
Make
Mercedes-Benz
Model
GLA
Generation
H247 - 2023 -> ...
Engine
45 AMG S - 421hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Mercedes-Benz GLA H247 - 2023 -> ... 45 AMG S - 421hp?

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 45 AMG S - 421hp make after tuning?

Standard output is 421 HP / 500 Nm; Stage 1 on this engine typically reaches 470 HP / 620 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Mercedes-Benz GLA H247 - 2023 -> ... 45 AMG S - 421hp 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 45 AMG S - 421hp 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.