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How to Install Pypes 4 in. Cat-Back Exhaust w/ Polished Tip - Single Side Exit on your F-150

Installation Time

2 hours

Tools Required
  • 3/4 Inch Ratchet
  • 9/16 Deep Socket 3/4 Drive
  • 9/16 Ratcheting Wrench
  • 15mm Ratcheting Wrench
  • 14mm Deep Socket
  • Tape Measure
  • Sawzall or Grinder
  • WD-40 or Silicon Lubricant
American Muscle
Shop Parts in this Guide

Install Procedure:

1. Begin by ensuring the vehicle is parked on a flat surface with parking brake engaged. If you do not have access to a lift and plan on using a jack and jack stands, be sure to place the jack in a safe location as not to damage any components. Place all four jack stands on the highest/safest setting to allow you enough room to work under the truck.

2. The removal of the factory exhaust is possible without any cutting or damage to the system. First, using a 14mm socket, loosen the flange bolts holding the mid pipe section to your y-pipe.



3. Using a 15mm wrench, start to loosening the bolt connecting the band clamp to the flex pipe. You do not need to completely remove the nut--once loose the pipe will move freely. This will allow the locking design to rotate out, allowing for separation.


4. The locking design as shown above will be located on top of the system. In order to separate the two, I suggest spraying this section of pipe with WD-40. By grabbing hold of the mid pipe, twist the the left to free the lock. Once free, wiggle side to side to work them apart.

5. Once the mid pipe has been removed, it will help if you spray the rubber isolators with WD-40, or a silicon lubricant for easy removal. To remove the muffler and tailpipe assembly, rotate the pipe 45 degrees, lifting the pipe over the bend of axle to allow clearance. Be sure not to damage the rubber isolators, as they will be reused in the installation of the new system.


6. Now, assemble the MVR400 muffler to the TTD010F tail pipe using the HVC76 muffler hanger. Remember to snug everything with enough room to allow for adjustments once on the vehicle. The MVR400 muffler is supposed to have an inlet designator stamped on teh muffler, showing the instillation direction, but mine did not. In this case, the raised louvers should face twoard the rear of the truck, per the instructions from Pypes Tech Support.


7. Follow by attaching TTD033R rear tail pipe hanger.

8. The MFT22 mid pipe is "trim to fit," which accomodates different bed lengths. Measure from the flange, opening to the inlet of the muffler with enough piping to slide into the slip fit opening. Take your mid pipe measuring from the flange side back, mine was roughly 50 inches in length.


9. Now, install the MFT22 mid pipe section that you have measured and cut to fit your bed size into the MVR400 muffler using the HTD086 hanger clamp.

10. Last but not least, it's time to add the 5 inch tip EVT405 to the rear tail pipe TTD033R. Now, safely jack the truck back up to remove all jack stands before placing the truck on the ground. Stand back, start the negine, and listen to your new tone. Check for leaks, and don't forget to take it for a spin. After a couple hundred miles, get back under the truck to check that all the bolts are tight. Enjoy!


Installation Guide created by AM Customer Christopher Richards on 03/16/2017