You are going to have to tint your back window or it will look real awful. I would not do the front windshield, I had it done on one of my cars about 10 years ago, its cool during the day but visabilty at night suffers.
2001 "MECHAM" Trans Am #3 - 7.0L LS1 600+HP
2001 Firehawk 10th Anniversary
2000 "FIREHAWK" Trans Am #212 - SOLD