BMW X3M Chiptuning File Service for Professionals

Stage 1, Eco and Performance Tuning Files for the BMW X3M

Looking for a high-performance tuning file for the BMW X3M? At OLSx, we provide custom ECU remapping files specifically tailored for the X3M. Whether you're targeting a Stage 1 power upgrade, an Eco remap for fuel savings, or a full Stage 2 setup, our configurator gives you instant access to dyno-tested, tool-compatible files. All files are compatible with major tools like Autotuner, Kess, and Ktag. Trusted by garages and professionals across the world, our service ensures fast, secure, and precise tuning for the BMW X3M.