Last seen on either 04 or 05 Ram 5.7, I researched it at one time but have forgotten the exact ending year. Car engines never had it, and '06 up engines never had it. My '03 2500 5.7 has it, so if anyone needs one '03 truck is the safe year to look for.
I like that adapter because it takes the same old filters I use on big blocks/small blocks, for which I've got a bunch laying around, so that's convenient.
I think the adapters might add a little bit of restriction which would be a downside, but it's fine for me and the truck. But it doesn't have an 8000 rpm motor in it so I guess I got off topic there.
