How to Install MBRP Pro Series 3 in. Cat-Back Exhaust - Middle Side Exit on your F-150

1. Apply a penetrating lubricant liberally to all hangers and rubber isolators.  

2. Loosen the factory clamp in front of the muffler.  

3. Loosen the factory extension pipe flange bolts. Refer to Figure 1. 

4. Rotate the factory extension pipe to release the factory muffler inlet  locking boss.  Refer to Figure 2.  

5. Remove the factory muffler assembly from the hangers and remove from the vehicle.  

6. Remove the factory extension pipe bolts and remove the factory extension pipe from the vehicle. 

2. Loosely install the Front Pipe using the supplied 3/8” Hardware.  If required, attach the Extension Pipe using a Clamp.  Refer to Figure 4.  

3. Install the Hanger Bracket onto the outside of the passenger-side frame, in front of the leaf spring eye, using two Panel Nuts, two 5/16” Flat Washers, and two 5/16” Bolts. A Super Crew short box model is shown. Refer to Figures 5 and 6. 

4. Using the 3” Clamp, loosely install the Muffler onto the Front Pipe (or Extension Pipe if required) at approximately a 35 degree angle.  

5. Using a 3” Clamp, install the Rear Tail Pipe into the Muffler and into the  factory isolator.  Refer to Figure 7. (5.0L Shown) 

6. Install the Rubber Isolator onto the Hanger Bracket and Rear Tail Pipe. Refer to Figure 8. 

7. Using a 3” Clamp, install the Front Tail Pipe into the Muffler, keeping the mounting tab below the Rear Tail Pipe mounting tab and attaching with the supplied 5/16” Bolt, Washers and Nut.  Refer to Figure 9, Figure 10 and Page 1. 

8. Install the Exhaust Tips and adjust to your liking. Refer to Figure 11. 

9. Align all the components to ensure the Exhaust Tips are level and parallel, and there is clearance around the body and frame. Once everything is aligned, completely tighten all Clamps and Hardware.