Catalog/ Cars/ Mercedes/ AMG GT 4-door Coupé

Mercedes AMG GT 4-door Coupé 63 SE AMG Performance

Name: Mercedes AMG GT 4-door Coupé 63 SE AMG Performance chip tuning
Brand: Mercedes
Price: 140.00 EUR
Availability: InStock

2018–present · 843 hp

Stage 1

E85

E85 + Stage 1

	Original	After tuning	Diff
Power hp	843	915	+72
Torque Nm	1470	1570	+100

Power gain

+9%

Torque gain

+7%

Ready to feel these +72 hp on the road?

Get your ready-to-flash Stage 1 file for the Mercedes AMG GT 4-door Coupé

Order tuning file →

Stage 1 file: €140

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Power graph / Stage 1

PowerTorqueStock

	Original	After E85	Diff
Power hp	843	870	+27
Torque Nm	1470	1535	+65

E85 adaptation (no Stage 1)

Just the fuel switch: the ECU is adapted to run Superéthanol E85 (up to 85% bio-ethanol) with no Stage 1 chip on top. You get a small power bump from ethanol's higher octane (~104 RON) and a much cheaper fill-up. Flex Fuel file: the car still runs on regular petrol whenever you want.

Save €5 693 a year at the pump

Get your E85 adaptation file for the Mercedes AMG GT 4-door Coupé

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −45%

Petrol · 100 km

~~39.3 L~~ · €83.52

E85 · 100 km

50.1 L · €45.57

You save ≈ €37.95 every 100 km — about €5 693 a year (over 15 000 km)

E85 uses ≈ +27% more litres, but the pump price (€0.909/L vs €2.123/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Mercedes AMG GT 4-door Coupé, calculateur d'économies par département →

	Original	After E85 + Stage 1	Diff
Power hp	843	980	+137
Torque Nm	1470	1725	+255

E85 + Stage 1 remap

Chip tuning re-optimised for Superéthanol E85: the ignition and boost maps are calibrated to make full use of ethanol's higher octane (~104 RON). Bigger power and torque gains than either Stage 1 on petrol or E85 adaptation alone, plus the same cheap fill-up.

+137 hp and €5 693/year saved — both

Get your E85 + Stage 1 file for the Mercedes AMG GT 4-door Coupé

Order tuning file →

File from €100

✓ Original file back-up ✓ Delivered in ~30 min ✓ Support included

Fuel cost — E85 vs petrol −45%

Petrol · 100 km

~~39.3 L~~ · €83.52

E85 · 100 km

50.1 L · €45.57

You save ≈ €37.95 every 100 km — about €5 693 a year (over 15 000 km)

E85 uses ≈ +27% more litres, but the pump price (€0.909/L vs €2.123/L, France average on October 29, 2026) more than makes up for it.

🇫🇷 Version française : conversion éthanol E85 de la Mercedes AMG GT 4-door Coupé, calculateur d'économies par département →

Original ECU files for Mercedes 9 254 stock (ORI) files · €20 per file →