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How to Install SLP Loudmouth LM-1 Axle-Back Exhaust on your Mustang

Tools Required
  • 3/8" Drive Ratchet
  • 3/8" Drive Extension – 3"
  • 15 mm Socket
  • Spray Lubricant (Soapy Water/Glass Cleaner)
  • Reciprocating Saw (“Sawzall”)
  • Marker
American Muscle
Shop Parts in this Guide

NOTE: All illustrations in this manual are representative of the 2015+ LoudMouth™ axle back exhaust


ORIGINAL EXHAUST SYSTEM REMOVAL

1. On both left and right sides, mark the exhaust pipe on the upstream side of the fi rst bend – where the curve of the pipe becomes tangent with the rest of the upstream portion.


2. Cut the LH and RH exhaust pipes at the locations marked in Step 1 using a reciprocating saw with a metal blade.


3. With the pipe cut; slide the hanger out of the rubber mount and remove the muffl er assembly from the vehicle.


Please note that the removal process is identical for the left and right sides of the OEM exhaust. This concludes the removal process for the OEM axle-back exhaust.

WARNING

Use extreme caution during installation. Torque all fasteners according to manufacturer’s torque values and tightening sequence. DO NOT use air impact tools to tighten fasteners on LoudMouth™ Exhaust Systems. Use of such tools may result in bent fl anges or gasket contact areas leading to exhaust leaks.

LOUDMOUTH™ EXHAUST SYSTEM INSTALLATION

1. Remove any protective packaging covering from both the RH and LH LoudMouth™ Assembly.

2. Slide the provided band clamps (V-8: 10-0338) (I-4/V-6: 94-0052) over the original exhaust pipe, one on each side (LH and RH).


3. Insert the LoudMouth™ muffl er hanger into the mount at the rear of the vehicle, and then slide the new pipe over the vehicle side pipe.


4. Slide the band clamp over the joint in Step 3 and torque the 15 mm bolt to 30 Nm.


5. Place the band clamp 10-0338 over the exhaust tip and slide the tip over the muffl er. Torque the band clamp to 30 Nm once the tip is in position.


6. Check the exhaust system for proper clearance under the vehicle and also for tip alignment as shown below. If alignment is off, loosen the required band clamp, adjust, and re-torque the band clamp.


7. Once the desired position and alignment has been achieved, ensure all band clamps are torqued to 30 Nm.


8. Before starting the vehicle, make sure to check all wires, hoses, brake lines, body parts, tires, and any other components for safe clearance from the exhaust system.

9. Start the vehicle and check for any leaks. If any leaks are found, determine the cause (such as loose or incorrectly positioned clamp) and repair as necessary.

Congratulations!!! You have completed the installation of the LoudMouth™ Axle Back Exhaust Kit. It is recommended that you save all parts removed from your vehicle during the installation of this kit.


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