If you are referring to vehicles, "Body Mods" are a specific category in the or HQ Garage menus. Custom Parts

Because in Santo Ileo, crime doesn't have a uniform. It has a slider.

The Boss looked down at their hands, which were now shimmering with a chrome-plated finish that caught the desert sun. Their build had shifted from the lean, athletic frame of a street brawler to something more imposing—heavy-set, muscular, and standing nearly a foot taller. Even their voice had a new, synthesized edge.