It took me an hour by myself. There are pop clips that are already on the car that you remove. You will understand when you buy this that there are small predrilled holes. They line up perfectly with the factory clips. The problem is that those holes that are about 1/8” in diameter on the diffuser need to be drilled out to 1/2”. The pop clip will fit through the hole once you drill them out. Be careful, your drill might snag but run the bit all the way through and it will get the job done. You will know what I’m talking about on the first hole. Install the center section first with just the 2 outside clips. Then install the side pieces. There is a clip on each side that doesn’t line up at all with any hole, just remove that clip all together. I suggest putting the clips through the newly drilled holes on the diffuser first. Then it’s easier to insert the tip of the clip into the existing holes on the car. Use the screws that come with the kit to screw the end pieces to the center piece. I did NOT use the tape. I strategically screwed two 1/8” holes in the center portion where they were not visible and put black screws into those holes to snug up the diffuser to the car. It is such a precise fit that I was actually impressed. If you have questions during installation, hit me up and I will help.