The Mach is tricky for the inlet pipe because the radiator is so close. Vortech makes an inlet like the one I described for the Fox mustang, but not for the mach. Your best bet is to get a power pipe, because it is metal and you can weld to it, and then have someone weld ikn a fitting as close to the rubber elbow as possible (at the supercharger end of the pipe). Have the fitting welded in at an angle, aiming the bypass air towards the supercharger and away from the maf.
I think you can move the bypass fitting at the other end of the system easier, and will probably do more to solve the problem anyway. Try moving the bypass so the air starts to recirculate right adter it exits the supercharger, before it goes though the intercooler.