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Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Refer to Exhaust System Inspection Notice in Cautions and Notices.
    Fig 1: Jack Stand & Catalytic Converter
    GM792386Courtesy of GENERAL MOTORS CORP.
  1. With the aid of an assistant install the catalytic converter to the jack stands.
  2. Raise the jack stands in order to position the catalytic converter.
  3. Install NEW exhaust muffler gaskets.
  4. Install ALL exhaust bolts until snug to ensure correct alignment of the catalytic converter.
  5. Remove the adjustable jack stands.
    6. Fig 2: Exhaust Muffler, Bolts & Gaskets
    GM676722Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Tighten the exhaust muffler bolts in the following sequence:
    1. Left inboard
    2. Left outboard
    3. Right inboard
    4. Right outboard

      Tighten:  Tighten the exhaust muffler bolts to 50 N.m (37 lb ft).

    7. Fig 3: Exhaust Manifold & Nuts
    GM676192Courtesy of GENERAL MOTORS CORP.
  7. Tighten the exhaust manifold nuts.

    Tighten:  Tighten the exhaust manifold nuts to 20 N.m (15 lb ft).

    8. Fig 4: Exhaust Pipe Brace Lower & Bolts
    GM676712Courtesy of GENERAL MOTORS CORP.
  8. Tighten the exhaust pipe brace lower bolts.

    Tighten:  Tighten the exhaust pipe brace bolts to 50 N.m (37 lb ft).

    9. Fig 5: Exhaust Pipe Hanger Lower & Bolts
    GM676717Courtesy of GENERAL MOTORS CORP.
  9. Tighten the exhaust pipe hanger lower bolts.

    Tighten:  Tighten the exhaust pipe hanger bolts to 50 N.m (37 lb ft).

    10. Fig 6: CPA Locks & Oxygen Sensor Electrical Connectors
    GM676711Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Oxygen Sensor Notice in Cautions and Notices.
  10. Apply anti-sieze compound GM P/N 12377953 or equivalent to the threads of the oxygen sensor.
  11. Install the oxygen sensors.

    Tighten:  Tighten the oxygen sensors to 42 N.m (30 lb ft).

  12. Install the oxygen sensor clips to the heat shields.
  13. Connect the oxygen sensor electrical connectors.
  14. Install the CPA locks.
  15. Lower the vehicle.
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