K&N #33-2154 fits the 2006-2013 F53 Ford V-10s. Been using K&N's for 30 years in 15+ vehicles for more than 500,000 miles with no down stream dust, no problems at all, gets better throttle response (even wife notices), always gets better MPG, and I don't have to buy another air filter (cheaper in long run). They flow air even dirty, but seldom need cleaning (my experience not advertising). If any dirt gets buy it's burnt up in combustion and exits.
2015 Fleetwood Discovery 40E on a Freightliner XCS chassis with a Cummins ISL9 pulling 1 and/or 2 motorcycles, '07 Honda Accord OR a 17' Runabout Boat.