Hello, on my 2010 WG I had a zippers maxflow air filter installed. I planned on swapping the filter over to my 2012 Street Glide but the backing plate is different. I ordered a performance package from fuelmoto which included a 2-1-2 headpipe, Jackpot pro touring mufflers, Power vision, and a fuelmoto/K&N style intake. Fuelmoto recently changed their backing plate and it will not accept the Zippers filter. My question is, I have read a flow rate comparison on all the filters and the zippers does flow more air but is there a need for my to spend 150.00 on a zippers setup? Thanks very much!