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How to Install Magnaflow MF Series Cat-Back Exhaust - Dual Side Exit - After Rear Tire on your F-150

Installation Time

3 hours

Tools Required
  • 15mm Wrench
  • Hanger Tool (Or Pry Bar)
  • Sawzall or other cutting device
American Muscle
Shop Parts in this Guide

HARDWARE KIT:

1.[1] 3.00" Clamp
2.[4] 2.50" Clamp


INSTALLATION INSTRUCTIONS

Step 1. To remove the OEM exhaust system, you
will to need to cut the pipe beind the muffler before it
goes over the axle. You can then disengage the
welded hangers from the OEM rubber insulators
and remove the tailpipe. Unfasten the clamp
attaching the OEM muffler inlet to the OEM catalytic
converter. Do not damage or discard the OEM
fasteners or rubber insulators, as they will be reused
to mount the new system. Disengage the muffler
hangers and remove the OEM exhaust from the
vehicle.​


Step 2. To begin, fasten the Inlet Pipe Assembly
to the catalytic converter using the OEM clamp
assembly and by fitting the welded hanger into the
OEM rubber insulator (Leave all clamps and
fasteners loose for final adjustment of the complete
system.) Install the Muffler to the Inlet Pipe
Assembly using the supplied 3.00" clamp and fitting
the hanger. Next install the Tailpipe Extension
Assembly to the Muffler in the similar fashion using
the supplied 2.50" clamps.


Step 3. Finish by installing the Tail Pipe Assembly
to the Tail Pipe Extension Assembly using the
supplied 2.50" clamps, fitting the welded hanger into
rubber insulator.


Step 4. Once a final position has been chosen for
the new exhaust system, evenly tighten all clamps
from front to rear using the torque specifications on
page one of the instructions. Inspect all fasteners
after 25-50 miles of operation and re-tighten if
necessary.