Finally permanently mounted the rear diffuser today. Two tubes of permitex, two pop rivits in the fender wells, and two self tapping screws in the tag area and it's done. Happy to have all the body mods on the car. Have decided to wrap the mirrors and the rear spoiler in carbon fiber to tie in the carbon look on the bottom of the diffuser and the splitter on the front bumper. Plan to adjust the exhaust mounts to better center the muffler tips tomorrow. Then get the wheels on her and pull her into the sun for a few photos. So here are the final install pictures of the rear defuser .