Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Front Exhaust Pipe: Installation
- Set new gasket to the rear exhaust pipe.
- Set a new gasket, and temporarily install the front exhaust pipe.CAUTION: Be sure to install the front exhaust pipe to the cylinder head.
- Install the bolts which secure front exhaust pipe to hanger bracket.
Tightening torque:
35 N.m (3.6 kgf-m, 25.8 ft-lb)
- Tighten the nuts which hold the front exhaust pipe.
Tightening torque:
30 N.m (3.1 kgf-m, 22.1 ft-lb)
- Connect the front exhaust pipe and rear exhaust pipe.
Tightening torque:
18 N.m (1.8 kgf-m, 13.3 ft-lb)
- Connect the front oxygen (A/F) sensor connector, rear oxygen sensor connector and the ground cord.
Tightening torque:
7.5 N.m (0.8 kgf-m, 5.5 ft-lb)
- Install the crossmember support rear LH. Ref. to FRONT SUSPENSION>CROSSMEMBER SUPPORT>INSTALLATION .
- Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
Factory Service Tools
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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.