	Original	After tuning	Diff
Power hp	340	380	+40
Torque Nm	700	750	+50

Power gain

+12%

Torque gain

+7%

Ready to feel these +40 hp on the road?

Get your ready-to-flash Stage 1 file for the BMW Serie 8

Order tuning file →

Stage 1 file from €110

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	340	345	+5
Torque Nm	700	715	+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 ~7% — €262 a year

Get your ready-to-flash ECO file for the BMW Serie 8

Order tuning file →

ECO file from €110

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

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

Fuel economy −7%

Before

~~14.7~~ L / 100 km

With ECO

13.7 L / 100 km

Saves ≈ 1.0 L / 100 km — about 150 L (over 15 000 km) ≈ €262

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

BMW Serie 8 840d