I had them glowing really good one night.
A little after that I noticed a slight crack in both fronts. They lasted for a long time afterwards.

I have a dream, and that is a 69 Boss 302 with Jules Asner in it.
Current - 2002 Chevy Silverado
Former - 98 SVT E0 T-Red 4/4/97 #173 of 6535(so long girl, you'll be missed)