Due to the vast variations in size and shape of the different windshields by Porsche, Apexspg will provide you with a block of vinyl for a general fitment. In order to apply the sunscreen simply place the vinyl at the desired height on the windshield and use a razor/xacto knife to trim around the shape of the windshield. This is the most efficient way to insure proper placement and fitment.
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Vinyl Numbers & Graphics 
