BMW · Power Calculator

BMW 4 Series G22 - 2020+ M440i 374hp Stage 1 Chip Tuning · ECU Remap

Name: BMW 4 Series G22 - 2020+ M440i 374hp Stage 1 Chip Tuning
Brand: BMW

Catalog reference — not a measured result for this vehicle.

How much bhp does BMW 4 Series G22 M440i 374hp chip tuning add?

Catalog reference: power 374 → 420 bhp, difference +46 bhp (12%); torque 500 → 575 Nm. Actual results depend on vehicle condition and measurement.

Power374 → 420 bhp+46 bhp (+12%)

Torque500 → 575 Nm+75 Nm (+15%)

Figures are typical ranges; exact results depend on the vehicle's hardware and dyno measurement.

Stage 1 Remap Stage 2 Remap Pop & Bang Speed Limiter (Vmax) Removal DTC / Fault Code Removal

Get a Quote

BMW 4 Series G22 - 2020+ M440i 374hp

Book an appointment Find a centre

Reversible: Yes, the original software is kept

BMW 4 Series G22 - 2020+ M440i 374hp — Stage 1 Remap

Stage 1 re-calibrates the ECU software — boost, fuelling and ignition maps — within the factory hardware's safe tolerances. No hardware changes are required.

Solutions for this vehicle

BMW 4 Series M440i 374hp Pop & Bang tuning

Stage 1 Remap

Software that optimises the engine's power and torque maps within safe limits.

Stage 2 Remap

Advanced software matched to hardware upgrades such as a sport exhaust or induction kit.

Pop & Bang

Software that creates exhaust crackle on lift-off.

Speed Limiter (Vmax) Removal

Removing the factory top-speed limiter from the software.

DTC / Fault Code Removal

Switching off selected diagnostic trouble codes (DTC) in the ECU software.

OUTSIDE TÜRKİYE?

Where can this be done near you?

Prime Chiptuning applies the software at its own centres in Türkiye. Abroad, our partners carry out the work with the same files, and workshops can order the file directly.

ENGINE FAMILY

About the BMW 3.0 turbo petrol (N54, N55 and B58: 335i, 340i, 535i, 540i, M140i, M240i, X5 40i)

BMW's six-cylinder turbo petrols, the N54 (2006–2013, twin turbo), N55 (2009–2017, single twin-scroll turbo) and B58 (2015 onwards), power the 1, 2, 3, 4, 5, 6 and 7 Series, X3, X4, X5, X6 and Z4 from 306 to 387 hp and are famous for their response to software.

How a Stage 1 remap works on the BMW 4 Series G22 M440i 374hp

Stage 1 recalibrates boost, ignition, fuelling and torque maps. The gain spreads across the whole rev range and is very clear in the mid-range. The automatic gearbox torque capacity is respected; knock-sensor data and fuel quality bound the calibration.

Pre-remap checklist

High-pressure fuel pump and injectors (a known issue on the N54 / N55).
Ignition coils and spark plugs.
Turbo wastegate play and boost leaks.
Oil consumption, PCV and cooling system (water pump, thermostat).

This section is based on Prime Chiptuning workshop experience; the power and torque figures come from the catalogue measurement above.

ECUs used in BMW vehicles

If you know your ECU family, its page lists exactly which solutions are available for it.

BOSCH EDC16C31 BOSCH EDC16C35 BOSCH EDC17CP02 BOSCH EDC17C41 BOSCH EDC17CP45 BOSCH EDC17C56 BOSCH EDC17C06 BOSCH MG1CS003 All ECU families →

BMW 4 Series — Power Calculator

Engine	Power	Gain
418d 150hp	150 → 190 bhp	+40 bhp
420d 190hp	190 → 220 bhp	+30 bhp
420i 184hp	184 → 250 bhp	+66 bhp
430d 265hp	265 → 310 bhp	+45 bhp
430i 245hp	245 → 294 bhp	+49 bhp
430i 258hp	258 → 287 bhp	+29 bhp
M440d 340hp	340 → 380 bhp	+40 bhp

Frequently asked questions

How much bhp does BMW 4 Series G22 M440i 374hp chip tuning add?

Catalog reference: power 374 → 420 bhp, difference +46 bhp (12%); torque 500 → 575 Nm. Actual results depend on vehicle condition and measurement.

Will chip tuning damage the engine?

No. Values stay inside the safety margin the manufacturer leaves; engine, gearbox and turbo limits are not exceeded. Every file is verified with a road test and data logging. If the car needs maintenance first (worn injectors, blocked filter, weak clutch) we tell you before starting.

Will my fuel consumption go up?

With the same driving style it usually drops, because you hold the same speed at lower revs and less throttle. If you use the extra power, consumption naturally rises. It is down to your right foot.

How long does it take? Do I leave the car?

Most cars take 1–2 hours and you get the car back the same day; no need to leave it. Some models need the ECU removed, which takes longer — we tell you when booking.

Can I go back to stock later?

Yes. The original file is read and archived before any work. We restore the factory software free of charge whenever you ask.

Does it void my warranty?

Changing engine software can affect the manufacturer warranty. If a dealer finds a fault to be software related, they may refuse that claim. We want you to decide knowing this. Your original file stays with us and can be restored before a dealer visit.

Will it pass the roadworthiness test?

Stage 1 power software does not touch emission hardware. Work on emission systems is offered only for uses permitted by law; road use and inspection compliance remain the owner's responsibility.

How much does BMW 4 Series G22 M440i 374hp chip tuning cost?

Price depends on the vehicle, the ECU and the solution chosen. Send us your vehicle details on WhatsApp and we will quote straight away. Inspection and measurement are free.

How is the work done?

We scan for faults and read the original software first. The file is adapted to your car's hardware, written, and verified on a road test. The original is archived.

What is checked on the BMW 4 Series G22 M440i 374hp before remapping?

Before working on the BMW 3.0 turbo petrol (N54, N55 and B58: 335i, 340i, 535i, 540i, M140i, M240i, X5 40i) we check: High-pressure fuel pump and injectors (a known issue on the N54 / N55). Ignition coils and spark plugs. Turbo wastegate play and boost leaks. Oil consumption, PCV and cooling system (water pump, thermostat). If something needs attention, maintenance comes first; the remap is applied to a healthy engine.

⚠ Software work on emission systems is offered only for uses permitted by applicable law (motorsport, off-road use, export, fault diagnosis, etc.). Road use and inspection compliance of the vehicle remain the owner's responsibility.