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How to Install Magnaflow Off Road Pro Series Cat-Back Exhaust - Turn Down on your F-150

Installation Time

2 hours

Tools Required
  • 15mm Socket
  • Hanger Tool (Or Pry Bar)
American Muscle
Shop Parts in this Guide

Step 1. To remove the OEM exhaust system, loosen the clamp attaching the systems inlet pipe to the resonator outlet pipe. Disengage all welded hangers from the OEM rubber insulators. Do not discard the OEM clamp or damage the rubber insulators as they will be needed to mount your new MAGNAFLOW system.


Step 2. Install the new system by attaching the Inlet Pipe Assembly to the resonator outlet pipe using the existing clamp. Locate the welded hanger to the rubber insulator. Leave all clamps and fasteners loose for final adjustment of the complete system once installed.


Step 3. Install the Extension Pipe between the Inlet Pipe Assembly and the Muffler Assembly using the supplied 3.00" and 2.50" clamps. Engage the welded hanger to the rubber insulator.


Step 4. Install both the Turn Down Tip with the supplied 2.50" clamp.


Step 5. 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.