Witch intake prefer Doch ZC, A6 or Z6 to Mini Me

At the moment run with Z6 Intake, some guys told this Z6 intake Dont flow so well as A6 and ZC intake
d16 mini me Z6 head, Plan to install D15B7 Piston begin of Summer
d16 mini me Z6 head, Plan to install D15B7 Piston begin of Summer