Mine is definitely the trend of doing “catless downpipes” and “resonator deletes” making your exhaust super raspy as a means of gaining more volume rather than doing a proper exhaust setup. Especially since high flow cats these days will flow more hp than most are making.
Anything that makes the car overly loud or make the exhaust smell bad. Rolling coal included.
Tinting the tail lights and changing wheel camber are 2 other stupid mods.