I would say 75% of reputable tint shops use LLUMAR'S tint. One of a few compnay's that sell it wholesale by the grosse yard and back it up with their own 5 year warranty... usually, the manufacturer doesn't put a warranty on their items (install reasons).. and it usually comes fromteh installer place.

2006 Pontiac G6 3900SFI GTP Coupe CAI, Stainless Cat Back, Vector Tune, Strut Brace, Eibach Pro Kit, Custom Made Projector Headlights, 4300K, 20% Tint Former Owner- 2000 "Stryped" CSVT CEG Dragon Run- Oct 13-15