The Amsoil filter is better quality. The nano fiber is designed to filter more evenly which doesn't allow dirt to get past the gaps inside most other paper filters.
I used k&n on My 2012 Limited because it was impossible to remove HD filter.K&N has a 17mm nut to tighten and loosen filter.I now have a 2014 and I can see the filter.I think I can remove it with any tool.:newsmile079:
K&N filters for the price are the best value & have the nut on the end for easy removal . I buy on E-BAY the kn-171c for under $12.00 for all my friends & myself.