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How to Install Magnaflow Street Cat-Back Exhaust on your Mustang

Installation Time

2 hours

American Muscle
Shop Parts in this Guide




Step 1. (Notice: This exhaust system fits on both convertible and coupe Mustangs. To install the system on a convertible you must first remove all underbody bracing.) Begin removing the exhaust system by loosening the clamp located in front of the resonator. Next, working front to rear extract the hangers from the rubber insulators and remove
the OEM system. Retain insulators and clamps as they will be used to install the new system.


Step 2. Begin installation of the new system by loosely attaching the Y-Pipe Assembly to the outlets using the OEM clamp. Leave all clamps loose until final adjustment.


Step 3. Next attach the Extension Pipe Assemblies to the Y-Pipe using the supplied 2.50" clamps and fitting the hangers into the rubber insualtors.


Step 4. Finish the initial installation by fitting the Muffler Assemblies onto the Extension pipes using the supplied 3.00" clamps and inserting the hangers into the rubber insulators.


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.

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