	Original	After tuning	Diff
Power hp	224	270	+46
Torque Nm	450	500	+50

Power gain

+21%

Torque gain

+11%

Ready to feel these +46 hp on the road?

Get your ready-to-flash Stage 1 file for the BMW Serie 4 GC

Order tuning file →

Stage 1 file from €80

Exact price depends on the ECU — confirmed when you upload the file

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

Power graph / Stage 1

PowerTorqueStock

	Stock	ECO	Diff
Power hp	224	245	+21
Torque Nm	450	465	+15

ECO tune

Power & torque are eased back a touch and the map is optimised for the lowest possible fuel use — best for daily commuting, towing and long motorway diesel runs. Smoother, calmer, cheaper to run.

Cut your fuel bill by ~8% — €213 a year

Get your ready-to-flash ECO file for the BMW Serie 4 GC

Order tuning file →

ECO file from €80

Exact price depends on the ECU — confirmed when you upload the file

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

Fuel economy −8%

Before

~~9.7~~ L / 100 km

With ECO

8.9 L / 100 km

Saves ≈ 0.8 L / 100 km — about 122 L (over 15 000 km) ≈ €213

Estimate for a typical duty cycle · real saving depends on load & driving style

BMW Serie 4 GC 425d