For me, LN spin-on with Wix 51042
I just became aware of another billet filter, Canton makes a 13/16 thread 3.4" tall billet filter (same height I think as the 51042)
https://www.cantonracingproducts.com/product/25-134/25-134---CM-34quot-BILLET-SPIN-ON-FILTER-1316quot--16-THREAD-2-58-O-RING/
Filters down to 8 microns, no bypass, and 12 GPM (21 microns and 9-11 GPM for the wix)
Downside is expensive inner media costs, but the inner media has a longer life, can can open the oil filter to inspect for bigger particles and then put it back together, changing out the element only when you get to the desired mileage.
If the Wix gets closer to the 9 GPM (in the 9-11 range they give) I wonder if that extra flow would be useful. Or is it just another way to spend extra money
