The K&Ns are nice, but so damn pricey...and I agree with the "you dont need the nut on the end if you hand tighten it anyways," though yes it does work better than the cups.
Just another reason to switch to a cartridge filter.
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ASE: Brakes
Yea..that very well could have been the most retarded idea I've ever heard, but .. do it anyway. -TheShow50h