Have anybody seen or have this Air Filter? looks nice and they claim 3RWHP gain and I doubt it but it might be a good performance upgrade to the stock filter, what do you all think? I am going with stage 2 ECU reflash and would like to have a better Air Filter.

Sparks Racing High Performance Air Box Kit, Polaris RZR 1000 XP/ XP4 and RZR XP Turbo