I couldnt find PFC as well, so i tried HKS F-CON, and it was awesome, my f-con is sz, but im upgrading to v-pro now. I talked to my tuner, normally u need to retune it every 6month unless u didnt have any mod after tuned and it cost $600 a tune, but u can purchase a auto tune device, and it will keep update itself to suit the latest mod u have. Mates got 1 install brand new v-pro ecu+ tuned+auto tune device+install = $3400. But u can actually buy a 2nd v-pro and get the tuner to reset and tune, will be way cheaper. A dude on this forum is selling it for gts25t, but i had comfirm to buy from him, so please dont try.........anyway, have u plug in the q45 afm ? possible to give me a wiring diagram ?thanks