Done tinted my windows to state laws, dark enough for me, cept id like to make the back window darker.

window kit was for a stock car so I got plenty of extra tint with the notchback.

anything wrong with putting the tint on the outside also???

 

Wind and rain will make it peel right back off.

 

I remember years ago my father bought a used car and the windows had multiple layers of tint (on the inside of the windows of course). I wouldn't have even known it was multiple layers until he decided it was too dark for him and he removed the tint from the front windows. I'd definitely do 2 layers on the inside before applying it on the outside.

 

yea I Guess if its designed to not change the optics of a window, another layer should do the same.....