HP Tuners 4.12.4 refers to a specific iteration of the VCM Suite software, the industry-standard ECU (Engine Control Unit) and TCM (Transmission Control Unit) flashing and tuning software. Unlike major annual releases, version 4.12.4 is an incremental update that focuses on refining existing parameters, expanding vehicle coverage, and resolving bugs found in earlier 4.12 sub-versions.
(including ATVs and side-by-sides) and new vehicle platforms. Environmental & Racing Versatility hp tuners 4.12.4