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Stage 1 ยท Petrol

BMW 2 Series (M) (G87) 2023> M2 CS 523bhp remap figures

The BMW 2 Series (M) M2 CS 523bhp (2023>) is a petrol 3.0L model making 523bhp and 649Nm as standard. After a Stage 1 ECU remap we expect 653bhp and 852Nm - up to 130bhp and 203Nm more than stock.

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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.

StockVanguard expectedExpected gain, up to
Power523 bhp653 bhp+130 bhp
Torque649 Nm852 Nm+203 Nm

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All maps at a glance

MapPowerTorqueExpected gain, up to
Stock523 bhp649 Nm
Stage 1Maximum software-only performance653 bhp852 Nm+130 bhp
+203 Nm
Stage 1 EcoPerformance with economy in mind621 bhp836 Nm+98 bhp
+187 Nm
Eco mapEconomy first610 bhp826 Nm+87 bhp
+177 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 2 Series (M)

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 MG1CS049. 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 2 Series (M) M2 CS 523bhp?

We expect 653bhp and 852Nm against 523bhp and 649Nm as standard: up to +130bhp and +203Nm. 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 2 Series (M) M2 CS 523bhp?

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: 621bhp and 836Nm expected. The Eco map is economy first: 610bhp and 826Nm. Both still sit above the standard 523bhp and 649Nm.

Do I need to tell my insurer about a remap?

Yes. A remap is a modification, so you should declare it to your insurer.