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

Installation Time

2 hours

Tools Required
  • 15mm
  • 13mm
  • Hanger Tool (Or Pry Bar)

HARDWARE KIT:

1. [1] HANGER BRACKET
2. [2] U-TYPE PANEL NUT
3. [2] M8-1.25 X 25mm BOLT
4. [2] M10-1.50 NUT
5. [2] M10 WASHER
6. [1] 3.00" TORCA CLAMP
7. [1] HANGER RUBBER


INSTALLATION INSTRUCTIONS

Step 1. To remove the OEM exhaust system, you will
first need to unbolt the muffler assembly from the flange
junction as shown.​


Step 2. Unbolt the clamp just behind the muffler.
Disengage the welded hangers from the rubber
insulators. Remove the OEM exhaust system. Do not
damage or discard the OEM fasteners or rubber
insulators, as they will be reused to mount the new
system.


Step 3. You are now ready to install your new
MAGNAFLOW exhaust system. Begin by loosely bolting
the inlet flange of the Inlet Pipe Assembly to the OEM
flange junction using the OEM bolts and the supplied
nuts and washers.


Step 4. Before installing the Muffler Assembly there is
an OEM rubber insulator assembly bolted to the
subframe that may need to be removed before installing
the Muffler Assembly. If your vehicles engine is 2.7L or
3.5L you will need to remove the rubber insulator
assembly. If you have the 5.0L leave the rubber
insulator intact.


Step 5. Locate the two square holes in the passengers
side of the vehicles subframe. Attach the two supplied
U-type panel nuts as shown in the diagram. Loosely bolt
the supplied Hanger Bracket Assembly to the panel nuts
using the supplied bolts.



Step 6. Install the Muffler Assembly and loosely secure
using the supplied 3.00" clamp. Attach the Hanger
Bracket Assembly to the welded hanger using the
supplied rubber insulator.


Step 7. 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.