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Home >> Subaru >> 2015 >> Legacy 2.5i >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System (H4DO) >> Front Exhaust Pipe >> Installation

Front Exhaust Pipe: Installation

  1. Install the front exhaust pipe and center exhaust pipe as a unit to the vehicle.
    NOTE: Use a new gasket.
  2. Temporarily tighten the nuts which hold front exhaust pipe to cylinder heads.
    Fig 1: Locating Front Exhaust Pipe Nuts
    G10262931Courtesy of SUBARU OF AMERICA, INC.
  3. Install the bolts, springs, and nuts which secure the rear exhaust pipe to the center exhaust pipe.
    NOTE: Use a new gasket.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb) 

    Fig 2: Locating Rear Exhaust Pipe Bolts
    G08317713Courtesy of SUBARU OF AMERICA, INC.
  4. Tighten the bolts which secure the center exhaust pipe to the hanger bracket.

    Tightening torque: 

    35 N.m (3.6 kgf-m, 25.8 ft-lb) 

    Fig 3: Locating Center Exhaust Pipe Bolts
    G08582756Courtesy of SUBARU OF AMERICA, INC.
  5. Tighten the nuts which hold front exhaust pipe to cylinder heads.

    Tightening torque: 

    30 N.m (3.1 kgf-m, 22.1 ft-lb) 

    Fig 4: Locating Front Exhaust Pipe Nuts
    G10262931Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the front oxygen (A/F) sensor connector (A) and rear oxygen sensor connector (B), and fasten the harness with the clip (C).
    Fig 5: Identifying Front And Rear Oxygen (A/F) Sensor Connector
    G10262928Courtesy of SUBARU OF AMERICA, INC.
  7. Install the under cover. <Ref. to INSTALLATION , Front Under Cover.>
  8. Lower the vehicle.
  9. Connect the ground terminal to battery sensor. <Ref. to BATTERY , NOTE, Repair Contents.>