Custom ECU calibrations for the BMW F90 M5, 2017 to 2023, including Competition and CS variants.
Powered by the S63B44T4 twin-turbo V8.
Stage 1 software-only and Stage 2 catless downpipe calibrations available. F90 M5s built before July 2020 are open ECU. F90 M5s built from July 2020 onwards require a one-time ECU unlock before tuning, done in-house at RPM and included with your tune. See our ECU Unlock Guide for details.
