The side skirts are 2 pieces... the part that attaches to the body of the car... but then you have the little pieces that mount to the bottom of the door to line up with the side skirt to make it all look flush. Notice the rough textured paint on the bottom of the car? The side skirt covers all of that part up...except for the part on the door. So you gotta get the door filler's to match it up so it doesn't look like ass. Well the Wings West side skirts dont come with door fillers so he was asking if anyone's ever used Stillen door fillers w/ the Wings West side skirts.