There is an order in which you sync them. I believe it's on the DVD that comes with it. I believe it's driver front, passenger front, passenger back, driver back. A circle. Atleast that's how I recall doing it on mine. Maybe re-watch the video.
2011 GT Premium 6-Speed
GO:S550 Longblock, Boss 302 Intake Manifold, Boss 302 Exhaust Cams, Airiad CAI, Boss 302 H-Pipe and Side Pipes, Borla S-Type Axlebacks
SHOW:GT350 20” Wheels, California Special/Boss Rear Spoiler, LED Marker Lights, S550 Style Headlights with HIDs