Front Exhaust Pipe: Installation

1. Install the turbocharger stay to the engine.

   Tightening torque:

   30 N.m (3.1 kgf-m, 22.1 ft-lb)

   Courtesy of SUBARU OF AMERICA, INC.

2. Install the water pump pulley cover and exhaust pipe stay to the engine and turbocharger stay.

   Tightening torque:

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

   Courtesy of SUBARU OF AMERICA, INC.

3. While holding the front exhaust pipe with transmission jack, set the front exhaust pipe, and temporarily install the front exhaust pipe to the cylinder head exhaust port.
   CAUTION: Be sure to install the front exhaust pipe to the cylinder head.
   NOTE: Use a new gasket.

   Courtesy of SUBARU OF AMERICA, INC.

4. Tighten the nuts in the numerical order as shown in the figure.

   Tightening torque:

   42.5 N.m (4.3 kgf-m, 31.3 ft-lb)

5. Retighten the nuts in the numerical order as shown in the figure.
   NOTE: This procedure is required to securely install the front exhaust pipe to the cylinder head.

   Tightening torque:

   42.5 N.m (4.3 kgf-m, 31.3 ft-lb)

   Courtesy of SUBARU OF AMERICA, INC.

6. Attach the bolt which holds the turbocharger stay.

   Tightening torque:

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

   Courtesy of SUBARU OF AMERICA, INC.

7. Install the oil catch tank. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>OIL CATCH TANK>INSTALLATION .
8. Set the center exhaust pipe (rear), and temporarily tighten the bolt which holds the center exhaust pipe (rear) to the hanger bracket.
   • CVT model

     Courtesy of SUBARU OF AMERICA, INC.

   • MT model

   Courtesy of SUBARU OF AMERICA, INC.

9. Install the bolts, springs, and nuts which secure the rear exhaust pipe to the center exhaust pipe (rear).
   NOTE: Use a new gasket.

   Tightening torque:

   18 N.m (1.8 kgf-m, 13.3 ft-lb)

   Courtesy of SUBARU OF AMERICA, INC.

10. Install the nuts which secure the center exhaust pipe (rear) to the center exhaust pipe (front).
    NOTE: Use a new gasket.

    Tightening torque:

    42.5 N.m (4.3 kgf-m, 31.3 ft-lb)

    Courtesy of SUBARU OF AMERICA, INC.

11. Tighten the bolts which hold center exhaust pipe (rear) to the hanger bracket.

    Tightening torque:

    35 N.m (3.6 kgf-m, 25.8 ft-lb)

    • CVT model

      Courtesy of SUBARU OF AMERICA, INC.

    • MT model

    Courtesy of SUBARU OF AMERICA, INC.

12. Install the bolt which secures the intake duct No. 1 to the turbocharger.
    NOTE:

    • Use new O-rings.
    • Be careful not to pinch the O-ring.

    Tightening torque:

    7.4 N.m (0.8 kgf-m, 5.4 ft-lb)

    Courtesy of SUBARU OF AMERICA, INC.

13. Connect the vacuum control hose to the wastegate control solenoid valve. (Except for Canada)

    Courtesy of SUBARU OF AMERICA, INC.

14. Connect the vacuum control hose to the wastegate control solenoid valve, and connect the engine coolant hose to the intake duct No. 1. (For Canada)

    Courtesy of SUBARU OF AMERICA, INC.

15. Connect the union screw pipe assembly to the oil pipe assembly, and connect the engine coolant hose to the water pipe RH.
    CAUTION: In order to prevent damaging the oil pipe assembly, fix the section (a) shown in the figure when tightening the flare nut on the union screw pipe assembly, and avoid the part from rotating together while tightening the nut.

    Tightening torque:

    20 N.m (2.0 kgf-m, 14.8 ft-lb)

    Courtesy of SUBARU OF AMERICA, INC.

16. Connect the connector on the rear oxygen sensor to the engine wiring harness, and connect the ground cable to the exhaust pipe cover.

    Tightening torque:

    7.4 N.m (0.8 kgf-m, 5.4 ft-lb)

    Courtesy of SUBARU OF AMERICA, INC.

17. Secure the front oxygen (A/F) sensor harness to the water pump pulley cover with the clip (A), and connect the front oxygen (A/F) sensor connector to the engine wiring harness.

    Courtesy of SUBARU OF AMERICA, INC.

18. Install the under cover. Refer to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>INSTALLATION .
19. Lower the vehicle.
20. Install the bolt which secures the intake duct No. 2 to the turbocharger.

    Tightening torque:

    16 N.m (1.6 kgf-m, 11.8 ft-lb)

    Courtesy of SUBARU OF AMERICA, INC.

21. Connect the engine coolant hoses to the water pipe assembly.

    Courtesy of SUBARU OF AMERICA, INC.

22. Attach the bolt which secures the water pump pulley cover to the turbocharger stay.

    Tightening torque:

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

    Courtesy of SUBARU OF AMERICA, INC.

23. Install the radiator sub fan and fan motor. Refer to COOLING (EXCEPT FOR STI)>RADIATOR SUB FAN AND FAN MOTOR>INSTALLATION .
24. Install the air intake duct. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>AIR INTAKE DUCT>INSTALLATION .
25. Check the engine oil level and replenish the engine oil if necessary. Refer to LUBRICATION (EXCEPT FOR STI)>ENGINE OIL>INSPECTION .
26. Connect the ground terminal to battery sensor. Refer to NOTE>NOTE>BATTERY .
27. Fill engine coolant. Refer to COOLING (EXCEPT FOR STI)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
28. Install the collector cover. Refer to INTAKE (INDUCTION) (EXCEPT FOR STI)>COLLECTOR COVER>INSTALLATION .

EXHAUST (EXCEPT FOR STI)> Front Exhaust Pipe