I can tell you this I put aftermarket filter and seemed fine after a while, then I had stuttering around 1200-1600 rpms took to dealer they did a flash to update something transmission shift points, said they couldn't find codes or anything wrong with the truck. I just changed to an original equip air filter and guess what.......stuttering stopped. Runs as it should, note I have had 5 previous years of this same engine and never happened I can only conclude that do not use aftermarket air filters in these engines.