After reading through this thread, and observing that the shape of Model 3's side and rocker panel is prone to catching debris kicked up from the front tires, I decided to make mud/splash guards, since there is nothing available as a bolt on kit (except the over-priced carbon fiber pieces).
I used RallySport's "Basic Universal" mud guard kit. The guards are attached using the existing lower holes (with longer BelMetric Tesla clips), although you have to drill a hole in the plastic wheel-well liner for the upper clip. All in for about $30
I used RallySport's "Basic Universal" mud guard kit. The guards are attached using the existing lower holes (with longer BelMetric Tesla clips), although you have to drill a hole in the plastic wheel-well liner for the upper clip. All in for about $30