The BMW 4 Series M440i 374hp (G22 - 2020 - 2023) produces 374bhp and 500Nm in standard form. A Stage 1 ECU remap can raise output to 420bhp and 575Nm, a gain of 46bhp and 75Nm, with no hardware modifications required.
Interested in a Stage 1 remap for your BMW 4 Series? Get in touch and we will discuss the best options for your vehicle.
JSM Diagnostics comes to you. Mobile ECU remapping across Medway and the surrounding areas.
Call us: 07711 934 905
Mon – Fri: 8:30am – 5:30pm