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HOMESERVICE MANUALSSUBARU2014LEGACY 2.5I, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISENGINE MECHANICALEXHAUSTEXHAUST SYSTEM (H4DO)FRONT EXHAUST PIPEINSTALLATION
2014 Subaru Legacy 2.5i, Automatic CVT Trans

Front Exhaust Pipe: Installation

2014 Subaru Legacy 2.5i, Automatic CVT TransSECTION Installation
  1. Install the front oxygen (A/F) sensor and rear oxygen sensor to the front exhaust pipe. Refer to INSTALLATION and INSTALLATION .
  2. Install the center exhaust pipe to front exhaust pipe.
    NOTE: Use a new gasket.

    Tightening torque: 

    35 N.m (3.6 kgf-m, 25.8 ft-lb) 

    Fig 1: Locating Center Exhaust Pipe To Front Exhaust Pipe
    G07664996Courtesy of SUBARU OF AMERICA, INC.
  3. Install the front exhaust pipe and center exhaust pipe as a unit to the vehicle.
    NOTE: Use a new gasket.
  4. Temporarily tighten the nuts which hold front exhaust pipe to cylinder heads.
    Fig 2: Locating Nuts And Front Exhaust Pipe To Cylinder Heads
    G08582755Courtesy of SUBARU OF AMERICA, INC.
  5. Install the rear exhaust pipe to center exhaust pipe.
    NOTE: Use a new gasket.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb) 

    Fig 3: Locating Rear Exhaust Pipe To Center Exhaust Pipe
    G08317713Courtesy of SUBARU OF AMERICA, INC.
  6. 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 4: Locating Bolts And Center Exhaust Pipe To Hanger Bracket
    G08582756Courtesy of SUBARU OF AMERICA, INC.
  7. 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 5: Locating Nuts And Front Exhaust Pipe To Cylinder Heads
    G08582755Courtesy of SUBARU OF AMERICA, INC.
  8. Connect the front oxygen (A/F) sensor connector (A) and rear oxygen sensor connector (B), and fasten the harness with the clip (C).
    Fig 6: Identifying Front Oxygen (A/F) Sensor Connector, Rear Oxygen Sensor Connector And Clip
    G08582753Courtesy of SUBARU OF AMERICA, INC.
  9. Install the under cover. Refer to INSTALLATION .
  10. Lower the vehicle.
  11. Connect the battery ground terminal.
    Fig 7: Connecting Battery Ground Terminal
    G08579605Courtesy of SUBARU OF AMERICA, INC.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.