Suntek=
I put Suntek Carbon on my '14 screw 2 weeks ago. As soon as I got it out in the daylight, I knew it was a big mistake. Suntek tint has a green tone to it. The factory tint on the back windows has a lot warmer brown tone to it. Side-by-side they don't look great. First thing my wife said when she saw the truck was, 'why are the front windows green?'
Three days later, I paid another shop to remove the Suntek, and apply Pinnacle F1, a high-end ceramic tint. Expensive mistake, huge difference. It matches the backs really well, even though it's lighter @ 50% (state law).
I highly recommend Pinnacle F1 for our trucks. I'm attaching a photo showing Suntek Carbon on the left next to Pinnacle F1 on the right.
I have Pinnacle F1 15% on all side and rear windows and love it. Nice and dark and blocks out tons if heat.
About windshield tint, I have SAT 75 on my sunroof. This is Solar Adaptive Tint that is darker during the day and lighter at night. Something like that would block out a ton of heat coming through the windshield.