Window tint
20% light is allowed through from factory. Put 15% on top of that and you get 5%. 20-15=5. It's the amount of light allowed through.
Joined: Sep 2008
Posts: 19,800
Likes: 1,089
From: Ohio
15 or 20 on top of the factory tint will bring it to about 5 ish. I have 5% on my front windows and put 20 percent on my rears which had the factory tint and they match pretty well.





