BMW 5 Series (G30 LCI) 2020> 520i MH 208bhp remap figures
Stock, this 2020> BMW 5 Series petrol (2.0L) produces 208bhp and 330Nm. Our expected figures for a Stage 1 remap are 308bhp and 484Nm, an expected gain of up to 100bhp and 154Nm.
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 | 208 bhp | 308 bhp | +100 bhp |
| Torque | 330 Nm | 484 Nm | +154 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 208 bhp | 330 Nm | |
| Stage 1Maximum software-only performance | 308 bhp | 484 Nm | +100 bhp +154 Nm |
| Stage 1 EcoPerformance with economy in mind | 283 bhp | 472 Nm | +75 bhp +142 Nm |
| Eco mapEconomy first | 275 bhp | 464 Nm | +67 bhp +134 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 5 Series
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in 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 5 Series 520i MH 208bhp?
We expect 308bhp and 484Nm against 208bhp and 330Nm as standard: up to +100bhp and +154Nm. 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 5 Series 520i MH 208bhp?
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: 283bhp and 472Nm expected. The Eco map is economy first: 275bhp and 464Nm. Both still sit above the standard 208bhp and 330Nm.
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 5 Series figures
Other petrol variants
- 530e PHEV 299bhp 2020>
- 545e PHEV 389bhp 2020>
- 550e PHEV 483bhp 2020>
- M550i 522bhp 2020>
- M5 592bhp 2020>
- M5 Competition 616bhp 2020>
All petrol 5 Series (G30 LCI) variants · 5 Series (G30 LCI) 2020> overview · All BMW figures