short of adding additional filter set-ups what manufacturer offers the smallest micron filtration for 2007 stock replacement
It was sometime after 05. The 05's came with 10 mic and I remember getting a couple of fuel filters (from Genos) that were 10 mic before the switch was made to 7 mic. Easy enough to check....
Looks like the 7 mic was introduced sometime in 06 so an 07 should have had the 7 mic.
https://www.turbodieselregister.com/threads/171269-fuel-filter-bulletin?p=1634398#post1634398
OEM was 10 mic, but they changed to 7 mic. Don't recall what year the switch occurred, but it was long ago. Be careful with any non stock filter, iirc the Baldwin has no water separation where the OEM elements do. The best bet is to add additional filtration. As nice as it would be, there is no magic bullet drop in element for the stock canister.