Window tint question

[Matt400]

I really like the factory window tint on the rear doors of my 05 and want to do another car, anyone know what % tint would replicate it?

 

[LFarmer]

20% matches mine perfectly, but is illegal

 

[SSalzer]

I have 20% on mine and I think it's too light compared to the rear. If you can find 15% (I've heard they make it but I've yet to find it) I think it will match better.

 

[Matt400]

Well, I can do the rear window and rear doors in 20% then on my other car but looks like I would be pushing it to do 70% of the front windows in CA