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Front Exhaust Pipe: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Install the turbocharger stay.

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G13620453Courtesy of SUBARU OF AMERICA, INC.
  2. Using a new gasket, temporarily install the front exhaust pipe, center exhaust pipe (front) and turbo charger as a unit.
    CAUTION: Be sure to install the front exhaust pipe to the cylinder head.
    NOTE: Support the front exhaust pipe with the transmission jack.
  3. Tighten the nuts in the numerical order as shown in the figure.

    Tightening torque: 

    65 N.m (6.6 kgf-m, 47.9 ft-lb)

    Fig 1: Turbo Charger, Front And Center Exhaust Pipe Nuts Tightening Sequence
    G13620455Courtesy of SUBARU OF AMERICA, INC.
  4. Install the bolts securing the exhaust stay.

    Tightening torque: 

    33 N.m (3.4 kgf-m, 24.3 ft-lb)

    G13620451Courtesy of SUBARU OF AMERICA, INC.
  5. Install the oil catch tank. Refer to INTAKE (INDUCTION) (H4DOTC)>Oil Catch Tank>INSTALLATION .
  6. Connect the electronic control waste gate valve connector (A) and the electronic control air by-pass valve connector (B).
    G13620450Courtesy of SUBARU OF AMERICA, INC.
  7. Connect the rear oxygen sensor connector and ground cord.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    G13620449Courtesy of SUBARU OF AMERICA, INC.
  8. Connect the front oxygen (A/F) sensor connector, and install the clip.
    G13620448Courtesy of SUBARU OF AMERICA, INC.
  9. Install the intake duct No. 1. Refer to INTAKE (INDUCTION) (H4DOTC)>Intake Duct>INSTALLATION>INTAKE DUCT NO. 1 .
  10. Install the center exhaust pipe (rear). Refer to EXHAUST (H4DOTC)>Center Exhaust Pipe>INSTALLATION>CENTER EXHAUST PIPE (REAR) .
  11. Install the intake duct No. 2. Refer to INTAKE (INDUCTION) (H4DOTC)>Intake Duct>INSTALLATION>INTAKE DUCT NO. 2 .
  12. Temporarily tighten the bolts which hold the turbocharger stay.
    G13620447Courtesy of SUBARU OF AMERICA, INC.
  13. Tighten the bolts which hold the turbocharger stay in the numerical order shown in the figure.

    Tightening torque: 

    33 N.m (3.4 kgf-m, 24.3 ft-lb)

    Fig 2: Turbocharger Stay Bolts Tightening Sequence
    G13620461Courtesy of SUBARU OF AMERICA, INC.
  14. Use a new gasket to connect the oil pipe to the chain cover.

    Tightening torque: 

    24 N.m (2.4 kgf-m, 17.7 ft-lb)

    G13620446Courtesy of SUBARU OF AMERICA, INC.
  15. Connect the water hose to the water tank pipe assembly.
    G13620445Courtesy of SUBARU OF AMERICA, INC.
  16. Install the air intake duct. Refer to INTAKE (INDUCTION) (H4DOTC)>Air Intake Duct>INSTALLATION .
  17. Check the engine oil level and replenish the engine oil if necessary. Refer to LUBRICATION (H4DOTC)>Engine Oil>INSPECTION .
  18. Connect the ground terminal to battery sensor. Refer to REPAIR CONTENTS>NOTE>BATTERY .
  19. Fill engine coolant. Refer to COOLING (H4DOTC)>Engine Coolant>REPLACEMENT>FILLING OF ENGINE COOLANT .