That set will not fit, it for the 2016 and older Super Duty. There is a 6.7L ppwerstroke kit for the 2018 here, https://www.sharptruck.com/truck-hardware-ford-super-duty-6-7l-power-stroke-gatorback-mud-flap-set-ga1223cutp-2-ga1226p-2-gb759841-gb759842.
If you like the look of this powerstroke logo you can get the flaps and brackets. You would need,
Front flaps: GB1223cutP
Front bracket: GB759841
Rear flap:GB1226P
Rear bracket:GB759842
Verified Answer
Admin answered on 7/15/2018