Download Installation Removing the Vehicle Parts 1. Turn the steering wheel fully counterclockwise. 2. Remove the three self-tapping screws and one clip from the left front fender lower trim. 3. Pull the left front fender lower trim toward you, and remove it. The two clips will stay in the body. Set the left front lower trim aside, it will not be reused. 4. Remove and discard the two clips that fastened the lower left front fender panel. 5. Pull the left rear door lower trim out toward you, and remove it. Set the trim aside, it will not be reused. 6. Pull the left front door lower trim out toward you, and remove it. Set the trim aside, it will not be reused. 7. Turn the steering wheel all the way clockwise, and repeat steps 2 thru 6 to remove the vehicle parts on the right side of the vehicle. 8. Using isopropyl alcohol on a shop towel, clean the areas where the new side under spoilers will attach. Left Rear Door Lower Trim. 9. Remove the two adhesive backings from the left rear side under spoiler. 10. Hold the new left rear side under spoiler against the door, and install the trim seal to the door panel. Fit the nine clips into the holes in the body, then push on the side under spoiler until the clips snap into place. 11. Using the rubber roller, apply firm pressure while rolling to set the adhesive. Apply firm pressure, especially at the ends. 12. Remove the two adhesive backings from the left front side under spoiler.