If you have problems with cops in your area catching people with tint, get the legal tint (35% I think). If not, go with the 20%. It might be a little hard to drive at night with a 5% on all your windows.
i have 20% all around and have never had any probs. usually i'll have the windows down a lil more on the drivers side just in case i drive by a cop but its been 3 years now and nothin so far (knock on wood). plus it looks real good too. you can't see in it at night, in the day its just a little darker which is good. it helps keep the inside a tad bit cooler lol
Windshield Non-reflective tint is allowed on the top 6 inches.
Front Side Windows Must allow more than 32% of light in.
Back Side Windows Must allow more than 32% of light in.
Rear Window Must allow more than 32% of light in.
Front Side Windows Must not be more than 20% reflective.
Back Side Windows Must not be more than 20% reflective.
OTHER GEORGIA RULES AND REGULATIONS
Restricted Colors The tint color(s) of RED are not legal by state law.
Side Mirrors No restrictions.
Certificate Requirements Manufacturers of film need to certify the film they sell in the state. Ask your dealer if they are using ceritified film.
Sticker Requirements The sticker to identify legal tinting is required on the windshield.
Medical Exemption State allows medical exemptions for special tint. For more details about the specific terms of the exemption, consult your state law.
i didnt get 5% because the wife has that and i cant see shit out tha back window at night unless the street is super super lit. i got 20% on my cars rear and back windows and i love it i can see and night keeps the car cool makes it look cool and looks sexy as hell