How much tint?

If I put 15% tint over factoty tent. Where does that put me at? 5%?

 

27% back x 0.15 = 4.05% in back.

I added 20% in front and 40% in the back, and I'm very happy with it.
http://www.tacomaworld.com/forum/2nd-gen-builds/235969-my-tint-added-20-front-40-back.html

 

Oy.. Im trying to stay above 5%. Because I had 5% before and if there was ever a spot in the window it showed. And it looked like black paper. Idk how to explain it.

 

Maybe I'll try .25

 

What is the factory tint on TRD models?

 

It should be the same on all models. If you look in the bottom corner of the window, there is a sticker. You should see a 27 on the back windows and a 70-something on the front windows. That is the percentage. It will be tiny.