So, thank you all for suggesting the unifilter and outerwears pre filter. However, today as I am taking apart the plastics for the 4 point harness install, I noticed a half-as# pre filter between the seats. Should I discard this or keep it there? It's a pain to get to to clean, and I have two uni-filter setups so I basically swap/inspect after every ride. This is on a zforce 500 2021.