PYPES PERFORMANCE EXHAUST SFM80MH Pypes H Box Exhaust Systems Instructions

: June 13, 2024
: PYPES PERFORMANCE EXHAUST

Table of Contents

PYPES PERFORMANCE EXHAUST SFM80MH Pypes H Box Exhaust Systems
Product Information
Product Usage Instructions
Introduction
Using Instructions
Bill of Materials
Contact
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

PYPES PERFORMANCE EXHAUST SFM80MH Pypes H Box Exhaust Systems

PYPES-PERFORMANCE-EXHAUST-SFM80MH-Pypes-H-Box-Exhaust-Systems-
product

Product Information

The SFM80MH, SFM80MHB, SFM80MX, SFM80MXB, SFM83MH, SFM83MHB, SFM83MX, and SFM83MXB are cat-back exhaust systems designed for the 2015-17 Mustang GT. They are manufactured by Pypes Performance Exhaust. The SFM80MH/MX models come with a H-Box or X-Box Cat-back and 4 tips, while the SFM80MHB/MXB models come with a H-Box or X-Box Cat-back and 4 black tips. The SFM83MH/MX models feature a 3 H-Box or X-Box Cat-back and 4 tips, while the SFM83MHB/MXB models feature a 3 H-Box or X-Box Cat-back and 4 black tips. The product is made of high- quality materials to enhance the performance and sound of your Mustang GT.

Product Usage Instructions

Place the vehicle on a lift or four jack stands at maximum height.
Loosen the butt connect clamps of the factory cat-back system using a 15mm socket. Retain these clamps for later use.
Remove the factory system in one piece. You can use liquid soap on the factory rubber insulators to aid in this step. No cutting is required.
Install the two PVA12 adapters into the front of the HFM80/XFM80 mid-pipe using two HVC24 clamps.
Install the mid-pipe assembly into the car, reusing the two factory butt connect clamps. Keep all clamps loose until final adjustment. Make sure the support rod welded to the back of the mufflers faces the ground.
Install the TFM80LF/TFM80RF tailpipe sections into the factory rubber isolators and onto the mufflers using two HVC24 clamps atthe muffler.
Install the remaining two tailpipe sections TFM80LR/TFM80RR by running a wire form hanger through the factory rubber insulators first and then connecting the slip fit joints. Use two HVC24 clamps at this connection followed by the tips.
Align and tighten the clamps. Start by tightening the two clamps forward of the box, followed by the factory butt connect clamps. Then tighten the tailpipe sections after aligning the tips in the openings of the valance. Use air tools for these steps if possible.
Start your car and check for exhaust leaks. Condensation drips from the slip joints are normal for the first few miles of driving until the system is fully seated.

Note: When tightening the HVC21/24/25/26 band clamps, make sure the I-block in the center of the clamp is against the head of the bolt to ensure proper tightening and prevent breakage. Now you can enjoy your new Pypes Performance Exhaust and experience enhanced performance and sound in your Mustang GT.

Introduction

Make sure you test fit these exhaust components BEFORE any cutting, welding or unnecessary bending is done. Once modified, the components of the system are NOT RETURNABLE.
If you are unsure of the proper installation procedures or fitment, please contact a qualified exhaust shop or call our tech lines toll free at 800-421-3890 or visit our installation gallery at: www.pypesexhaust.com/install
One of our experienced exhaust techs will be glad to assist you in any way. Thanks and enjoy you new..
Pypes Performance Exhaust!

SFM80MH/MX: 2015-17 Mustang GT H-Box or X-Box Cat-back w/4″ Tip
SFM80MHB/MXB: 2015-17 Mustang GT H-Box or X-Box Cat-back w/4″ Black Tip
SFM83MH/MX: 2015-17 Mustang GT 3″ H-Box or X-Box Cat-back w/4″ Tip
SFM83MHB/MXB: 2015-17 Mustang GT 3″ H-Box or X-Box Cat-back w/4″ Black Tip

Thank you for purchasing your new Pypes Performance Exhaust cat-back system for your 2015-17 Mustang GT. Please take the time now to review these installation instructions and confirm that all the components in this kit were received in your shipment, before you begin disassembly of your exhaust. If you find a component missing or have questions about installation, please call our office at 800-421-3890 or email tech@pypesexhaust.com or through our live chat found on the home page of the Pypes website at www.pypesexhaust.com

Using Instructions

Begin by placing the vehicle on a lift or four jack stands at maximum height.
Unbolt your factory system cat-back by loosening the butt connect clamps using a 15mm socket. Retain these clamps because they will be reused later in the installation.
Once these clamps are loose, the factory system can be removed in once piece. The use of liquid soap on the factory rubber insulators will aid in this step. There is no cutting required.
Now it’s time to start the installation of your new system. Begin by installing the two PVA12 adapters using two HVC24 clamps into the front of the HFM80/XFM80 mid-pipe. Next install the mid-pipe assembly into the car, reusing the two factory butt connect clamps, keeping all the clamps loose until final adjustment. Note: the mid-pipe has a support rod welded to the back of the mufflers. This rod should face the ground and mufflers tuck up nicely following the lines in the gas tank.
Next, install the TFM80LF/TFM80RF tailpipe sections into the factory rubber isolators, then onto the mufflers using two more HVC24 clamps at the muffler. The remaining two tailpipe sections TFM80LR/TFM80RR are easiest to install by running a wire form hanger through the factory rubber insulators first and then connecting the slip fit joints. Use the two remaining HVC24 clamps at this connection followed by the tips.
Now that everything is installed loosely, you can begin the alignment and tightening process. Making sure the midpipe is flat, follow the gas tank and tighten the two clamps forward of the box, followed by the factory butt connect clamps.
Next tighten the tailpipe sections, but only after you have the tips aligned in the openings of the valance. Tighten the tips and your installation is complete. Note: The use of air tools is highly recommended for these steps.
Lastly, start your car and check for exhaust leaks. Condensation drips from the slip joints are normal for the first few miles of driving until the system is fully seated.
- Note: When tightening the HVC21/24/25/26 band clamps, make sure the I-block in the center of the clamp is against the head of the bolt. Failure to do so will result in the clamp not tightening properly or the I-block to break.

Now it’s time to fire up that muscle car and enjoy your new Pypes Performance Exhaust.