I got my A4 done at Pro Tint and Security on Pacific in Stockton. I think they did a good job. They use Formula 1 ceramic. It was a long time ago so I don't remember exactly what tint % I got, but i think it was around 35%.

I think they quoted me 300 to do the 5 windows in my G coupe, but I ended up taking it to Automall Tint Specialist in Fremont to get the Huper Optik ceramic 40% on all my windows.

I don't have a picture of the Huper on the G, but here's a picture of the Formula 1 film:

 

Window tint is usually in 5 grades right? Light, medium, medium dark, dark, and limo, right? What percentage do you think each kind is. I'm thinking Light is 45%, medium is 35 %, medium dark is 25%, dark is 15 percent and limo is 5 %?