GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Refer to Exhaust Service Caution in the Preface section.

Caution: Refer to Protective Goggles and Glove Caution in the Preface section.


    Object Number: 932058  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Install adjustable jack stands under the front and rear of the intermediate pipe.
  3. Loosen the exhaust muffler band clamps (2, 5).

  4. Object Number: 1968507  Size: SH
  5. Separate the exhaust mufflers (1) from the intermediate pipe (2).

  6. Object Number: 1968532  Size: SH
  7. Remove the exhaust pipe hanger lower nuts (1).

  8. Object Number: 1968649  Size: SH
  9. Remove the intermediate pipe-to-catalytic converter pipe nuts (1) and the exhaust pipe seals (2).
  10. Lower the jack stands.
  11. Remove the intermediate pipe from the jack stands.

Installation Procedure

    Caution: Refer to Protective Goggles and Glove Caution in the Preface section.

    Important: If reinstalling the original intermediate pipe, the tail pipe/muffler band clips must be replaced. Mark the position of the band clips on the intermediate exhaust pipe. Remove the band clips by grinding the welds. Install new band clips on the intermediate pipe. Position the new band clips using the alignment mark created previously.

  1. Using a wire brush, clean the contact area of the left and right mufflers to the intermediate pipe.
  2. Apply a small amount of lubricant on the intermediate pipes and the left and right mufflers
  3. Position the intermediate pipe on the jack stands.
  4. Raise the intermediate pipe and install the intermediate pipe.
  5. Install the exhaust pipe seal.

  6. Object Number: 1968507  Size: SH
  7. Install the intermediate pipe (2) to the exhaust mufflers (1).
  8. Important: When install the retaining nuts, hand tighten them. This will allow the proper alignment of the exhaust system for the final assembly procedure.

  9. Install the retaining nuts (2).
  10. Remove the adjustable jack stands.
  11. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 932058  Size: SH
  12. Tighten the exhaust muffler clamps (2) and (5).
  13. Tighten
    Tighten the exhaust clamps bolts to 44 N·m (32 lb ft).

  14. Tighten the intermediate pipe to catalytic converter pipe nuts and bolts.
  15. Tighten
    Tighten the intermediate pipe-to-catalytic converter pipe nuts and bolts to 25 N·m (18 lb ft).


    Object Number: 1968532  Size: SH
  16. Tighten the exhaust pipe hanger lower nuts (1).
  17. Tighten
    Tighten the exhaust pipe hanger nuts to 50 N·m (37 lb ft).

  18. Lower the vehicle.