How to Install BBK Off-Road X-Pipe - Stainless Steel (05-10 GT w/ Long Tube Headers) on your Ford Mustang

STEP 1: Disconnect negative battery cable.

STEP 2: With BBK Full Length headers (part #’s 1641/0/5 or 16495 ) installed, lift X-pipe in place.

STEP 3: Line up rear of X-pipe with stock barrel style clamps and slip clamps over reduced end of X-pipe.

STEP 4: Position X-pipe collector flanges up to headers, connect headers and X-pipe with studs supplied in the header kit.

STEP 5: Adjust position of exhaust system for fitment and clearance. Tighten clamps and collector nuts.

STEP 6: Remove rear O2 sensors from the stock midpipes.

STEP 7: Install rear O2 sensors in the BBK X-pipe.

STEP 8: Connect supplied O2 sensor extension wires to plugs at wire harness at the side of the trans. Connect the sensors.

STEP 9: Start engine and check for any exhaust leaks.