Do you want heat rejection, light rejection or both? 3M has a Crysalline line that you could get in a legal tint with 95% or better heat rejection.
As for why 3M... Have you ever seen those cars with peeling tint? That's usually dur to cheap tint (3M has a lifetime warranty) and/or a piss poor installation.
Last edited by r2t2; 12-31-2012 at 07:28 AM.