Magnaflow Catback Exhaust (99-04 GT / Mach 1 / Bullitt) - Installation Instructions

This Mustang Parts Installation Guide Works For

Magnaflow Catback Exhaust (99-04 GT, Mach 1)DOWNLOAD PDF

Tools Required

Installation Time: 2 Hrs

Installation

  1. To begin removal of your OEM exhaust system, you will need to cut the tail-pipes just behind the mufflers. Remove the tail pipes from the OEM rubber insulators. Do not damage the OEM rubber insulators, as they will be reused with your new system. Next, unbolt the extension pipes from the H-pipe and remove the mufflers from their OEM rubber insulators. Do not discard the fasteners required to bolt the extension pipes to the mufflers, as they will be re-used.

    muffpipe

  2. Begin installation by bolting the new front extension pipes to the H-pipe with the supplied flanges and the OEM fasteners. Leave all clamps and fasteners loose for final adjustment of the complete system. Working rearwards slip the new mufflers over the ends of the extension pipes and mount the muffler hangers into the OEM rubber insulators. Slide the tips onto the tail pipes, and fit the tip hangers into the OEM rubber insulators under the rear fascia. Adjust the tips for aesthetics before tightening the mounting points.

    tailpipe

    tips

  3. With all components mounted loosely, adjust the system for overall aesthetics and clearance of frame & bodywork. (MAGNAFLOW recommends at least 1/2" of clearance between the exhaust tips and the rear fascia to avoid heat related body damage or fire.)
  4. Once a final position has been chosen for the new system, evenly tighten all fasteners from front to rear. The supplied band clamps must be VERY tight to properly align the pipes and prevent leaks (Approximately 65 ft-lbs). U-bolt clamps should be tightened to approximately 30-35 ft-lbs. inspect all fasteners after 25-50 miles of operation, and retighten if necessary.

Installation instructions provided by Magnaflow

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