FWIW, I like Fleetguard/Mopar air filters, if Fram works for you, just fine for you. There are documented tests out there that prove which ones are better, but in the end, it's individual right to choose. I'm guessing, for example, there must be enough business for Fram to keep selling filters for our trucks and my guess is those folks are happy. I have a friend, retired USAF and now a cattle rancher, who has exclusively used Fram oil and air filters on his 2000 Ram 2500 Cummins since new with first T4 oil and filter change . Truck has ~300K miles. A long time ago I mentioned to him there's better than Fram out there... he spit some dip and kindly said he hasn't had a problem and doesn't expect to.
Anyhoo, most of us 20 year plus Ram Cummins owners have pretty much figured out what works for us. I don't have anything else to say about it.
Cheers, Ron