2. Pull the top edge of the OEM rocker trim outward to expose the adhesive tape that holds on the skirt. Use a knife to cut the tape. 

3. Pull the clips of the OEM trim outward. 

4. Lift the OEM trim up to pull it off the car. There is a plastic bracket that stays on the rocker - shown here.

5. The wedges on the skirt should be against the OEM trim we just removed. Clamp the skirt onto the OEM trim at each end. Then line up the front edge of the skirt onto the OEM trim so it is flush with the trailing edge of the front wheel well. 

6. Check the center, the skirt should be 20mm from the edge of the OEM trim. 

7. Use the holes in the skirt to drill into the OEM trim. Slide in a bolt, then place another plastic wedge inside the OEM trim. 

8. Repeat for the other bolts. 

9. Slide the OEM trim onto the plastic bracket on the car, then clip in the bottom edge. DONE!