Magnaflow Catback System Installation Guide (87-93 Mustang GT)

The below installation instructions work for the following product:

Magnaflow Catback System (87-93 Mustang GT)

Here at American Muscle, we're all about DIY (do it yourself). Of course, there's nothing wrong with seeking out a little bit of tech help prior to taking on an installation on your own. Our Mustang installation guides will provide valuable instructions and hopefully answer any how-to questions that you may have along the way.

(Right Click, Save Target As)

Please read through the instructions carefully before starting this project.  Take the time to get all the materials together as well as all the safety equipment.

When working on, under or around any vehicle, exercise caution. Please allow the vehicle's exhaust system to cool before removal, as exhaust system temperatures may cause severe burns. If working without a lift, always consult vehicle manual for correct lifting specifications. Always wear safety glasses and ensure safe work area. Serious injury or death could occur if safety measures are not followed.

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 re-used 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.







2. Remove the existing muffler mount brackets, and replace them with the new brackets supplied in the kit. Do not discard the OEM mount fasteners, as they will be re-used. Refer to diagram #2 for installation of the new muffler mounts.







3. Starting at the H-pipe, begin installing your new exhaust system by bolting up the front extension pipes with the flanges supplied in the kit and the OEM fasteners. Leave all clamps and fasteners loose for final position has been set. Working rearward, install the mufflers, and tailpipes using the supplied U-bolt clamps. Then install the polished tips using the supplied band clamps, hangers and set-screws.
   
   
4. Adjust all components for clearance of the frame, bodywork, and overall aesthetics. (MANGAFLOW recommends at least 1/2" of clearance between the exhaust tips and the rear fascia to avoid heat related body damage or fire.) Once a final position is 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 hardware after 25-50 miles of operation, and re-tighten if necessary.