BMW X4 (G02) 2019> M40i MH 360bhp remap figures
Stock, this 2019> BMW X4 petrol (3.0L) produces 360bhp and 500Nm. Our expected figures for a Stage 1 remap are 435bhp and 574Nm, an expected gain of up to 75bhp and 74Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 360 bhp | 435 bhp | +75 bhp |
| Torque | 500 Nm | 574 Nm | +74 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 360 bhp | 500 Nm | |
| Stage 1Maximum software-only performance | 435 bhp | 574 Nm | +75 bhp +74 Nm |
| Stage 1 EcoPerformance with economy in mind | 416 bhp | 568 Nm | +56 bhp +68 Nm |
| Eco mapEconomy first | 410 bhp | 564 Nm | +50 bhp +64 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your X4
Naturally aspirated petrol engines have no boost to raise, so gains from software alone are more modest than on a turbocharged car and come from fuelling, ignition and throttle response.
The ECU recorded for this variant is a Bosch MG1CS201. Newer ECUs often protect their software, so we read the exact unit and version on the car before confirming the figures on this page.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the BMW X4 M40i MH 360bhp?
We expect 435bhp and 574Nm against 360bhp and 500Nm as standard: up to +75bhp and +74Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the BMW X4 M40i MH 360bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 416bhp and 568Nm expected. The Eco map is economy first: 410bhp and 564Nm. Both still sit above the standard 360bhp and 500Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More BMW X4 figures
Other petrol variants
All petrol X4 (G02) variants · X4 (G02) 2018> overview · All BMW figures