Seems you two above do not have the CF version and do not have any experience to speak on the topic of this thread. Please read the title: "Aeroflow dynamics carbon front lip"
The CF version attaches using the existing stock bumper clips and some double sided tape. I installed as recommended by...
I had one on my FL5. Was consistently almost falling off, constant pain. It ended up folding underneath my car going about 70 the other week. I pulled over and ripped it off and decided to never buy a product from them again. Fortunately It did not damage the car. Total waste of money, garbage...