http://www.oilfilterstudy.com/

I found it on www.bobistheoilguy.com. It compares several of the filters commonly used, but not Suby size of course. But informative for comparisons sake.

Interestingly enough, the Purolator Premium Plus that is supposedly the OEM filter in our cars filters 'good' while having 'excellent' flow. It is one of the tops in flow, as much as 3 times the flow of others.

The filters that seem to be a good compromise between cost, filtration, and flow are ACDelco Duraguard, Premium Plus, and Baldwin.

The best 'cost is no object' filters seem to be the K&N, though not the best at filtration, yet still above average, and with excellent flow; the Mobil 1, good flow and excellent filtration; the PureOne, which I've been using, though the best in filtration, has low flow; and Amsoil, which seems to have the best combination of high flow and excellent filtration*.

I just ordered 3 Amsoil filters, but if I could not spend that much on a filter, I would choose the Purolator Premium Plus: cheap, crazy high flow, good filtration.

I'm gonna go throw up now (I just spent 4 hours on BITOG:huh: