See thats what keeps me from doing any front end mods like that, unless theyre made for the bumper and bolted on, no fuckin way. With wind pressure and speed against it and things flying thru the air catching in it possibly, etc. No damn way Id install something on the front end thats held on even partially by tape.
The carbon lips look alright but its just nowhere near nuff for me to go thru the work, money and stress of it coming off or cracking, etc.