i did run it on the acn 91 stage 2 that the v3 AP already provides but didnt notice power gainYep.. stage 2 map for Arizona/California/Nevada 91 octane fuel. For that car it's the same map for the Cobb SF intake as it is for the stock intake.
https://www.cobbtuning.com/maps/2004-subaru-impreza-wrx-stage-2-map
Well, that's the reallyi did run it on the acn 91 stage 2 that the v3 AP already provides but didnt notice power gain