The 3" intake pipes will be stepped down to 2.25" for 14b and stock recirc.
reason is for Wastegate pressure line just bellow pipe, 3" hits it {kinks it into overboost..not good, and no recirc=stalling problems w/o piggy back or standalone}.

Rob, What turbo are you running? Step down OK for you w/o recirc ? Let me know.
Thanks.