We began with the shock-tower covers, which are identified by "D" and "P" for driver and passenger side. Note the concave contoured area. These must face the fender for proper hood frame clearance. The flange around the bottom is stepped to fit around the structural support panels. It's recommended that you apply assembly grease to the retention tabs. While grasping the outer part of the cover, rotate it back and forth while pressing down at the center with the palm of your hand until you feel the cover pop into place.