GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 29800 Cut Off Tool

    Important: When replacing the intermediate pipe, service mufflers will be required.


    Object Number: 71760  Size: SH
  1. Support the resonator and mufflers.
  2. Remove the exhaust hangers.

  3. Object Number: 43556  Size: SH
  4. Use the J 29800 in order to cut the pipe(1) at the resonator and mufflers.
  5. Remove the intermediate pipe(2).

Installation Procedure


    Object Number: 43554  Size: SH
  1. Use the U bolt type clamp to loosely assemble the muffler and the intermediate pipe.
  2. • Position the clamp on the left side muffler so that the nuts are toward the left side of the vehicle.
    • Position the clamp on the right side muffler so that the nuts are toward the right side of the vehicle.
  3. Use the U bolt type clamp to loosely assemble the intermediate pipe to the resonator.
  4. • Position the clamp on the left side of the muffler so that the nuts are toward the left side of the vehicle.
    • Position the clamp on the right side muffler so that the nuts are toward the right side of the vehicle.

    Object Number: 71760  Size: SH
  5. Install the exhaust hangers.
  6. Align the system for proper clearances.
  7. Tighten the pipe clamps and then tighten the hanger fasteners.
  8. Tighten
    Tighten the clamp nuts to 40 N·m (30 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.