I’ve had Gatorback mudflats on my other trucks over the years and always very happy with the quality/fit/finish. Expensive but have always lasted.
Their website didn’t have anything listed for the gen 3, so I sent an email inquiry and got the following reply
“Good morning, as a matter of fact Gatorback was able to get a 2021 Raptor yesterday and get some flaps on it. It looks like they should be pretty close to finished with the test fitting.Hopefully they will have something ready to order in the next few weeks. As soon as we get part numbers and pricing I will get them loaded up on the site.”
He also included two pictures.