Just food for thought: Studies have shown that cotton wick type filters (i.e. K&N) that use the surface contact of oil to catch dirt particles, actually let a substantially increased amount of dirt particles into the upper intake plenum. The performance gains from a K&N are negligable when weighing in the fact that there is more going through, well in MY opinion anyway.
Hmm, I dunno, I guess I forgot about that one. Which one of those three, the fram, trd, k&n would be better? I'd probably mess with the k&n just cuz it's k&n. if anybody has any data about these, please post or atleast post a link to a site where i can compare them.