This video shows how a manual BMW M135i is tuned to Stage 2 using only an iPhone and the MHD app, then tested on the German Autobahn. After upgrading hardware components like the intercooler, charge ...
This video showcases the installation of a complete Stage 2+ performance package on a BMW F87 M2. The upgrade includes a catless downpipe, CSF high-performance intercooler, reinforced charge pipe, and ...