While just checking on filters I ran across this..for what its worth.
Most modern motorcycles use the filter I call type [5], so this is the filter where I give you the most options. Personally, I always use Purolator Pure One PL14610s, which, along with the Mobil-1 M1-110 is clearly the best oil filter available. A small step down are the Bosch and SuperTech filters. These filters all have advanced filter media which is clearly superior to anything else on the market. The SuperTech filters, at $2 each, are a real steal. The ****** filters also have the advanced media, but they only have a very few square inches of it. Because of my fear that these can become clogged up too easily, I cannot recommend them. The remaining filters all have "normal" media, and have significantly poorer performance in capturing particles. I recommend you avoid Fram and Pennzoil filters.
link
Kinda interesting reading.