well i know there's that main T-fitting where a lot of people tap in for a bc...T's to the stock bpv and wastegate; i believe it's a 3/16" at all 3 ends. that may be the only one you need to watch actually, just look around for others. As far as feet...no idea, and it depends how much you're replacing -- i just left the stock ones in because they're not leaking, and are a pita to get out.