There is not a custom fit set for the 2016. There is a universal flap that is the correct length and width for the vehicle. They would be installed with the provided self tapping screws and fasted to the lip of the fender and the wheel well liner.
The below flaps are all the size you need with different logo options:
No plate: https://www.sharptruck.com/truck-hardware-gatorback-mud-flaps-no-plate-10x18-cut-style-gb1018cutbk
Blank Stainless Plate: https://www.sharptruck.com/truck-hardware-gatorback-mud-flaps-blank-stainless-steel-plate-10x18-cut-style-gb1018cutss
Black Bowtie: https://www.sharptruck.com/truck-hardware-gb1018cutbt
Gold Bowtie: https://www.sharptruck.com/truck-hardware-gb1018cutbt-g
Black Bowtie Black Background: https://www.sharptruck.com/truck-hardware-gb1018cutbt-w
Admin answered on 2/26/2020