Had 3M SuperShield Film professionally installed on my Backdraft Cobra about 3 years ago. No yellowing as of 5000 miles. Watched installation.
Some of the curves were a real challenge even by a seasoned installer. No stone nicks from my Goodyear Billboards. Very happy with the product. Hard to tell it's even there. Auto SuperShield handled the installation in Boca Raton, Florida. At the time they traveled around the United States doing applications at dealers.