i know the front windshield must be OEM because you cannot get it form anywhere. i went though this a couple years back... i put up a stink asking for OEM glass, they said no then called me back saying that you can only get OEM glass. i want to say that it was only like 500$ therefore 1600$ a year is ludicrous. not sure on the side widows... i would imagine that they are not as expensive as the windscreen.

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