Exhaust Y-Pipe: Installation

WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty and 2018 Ford F-450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Do not tighten the fasteners until all components are assembled.

Install the exhaust Y-pipe in the vehicle and loosely install the new RH exhaust Y-pipe-to-exhaust manifold nuts.

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NOTE: Do not tighten the fasteners until all components are assembled.

Loosely install the new LH exhaust Y-pipe-to-exhaust manifold nuts.

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NOTE: Do not tighten the fasteners until all components are assembled.

Loosely install the new exhaust Y-pipe-to-catalytic converter bolts.

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1. Tighten the LH lower exhaust Y-pipe nut.
  Torque: 177 lb.in (20 Nm)
2. Tighten the LH upper exhaust Y-pipe nut.
  Torque: 30 lb.ft (40 Nm)
3. Tighten the LH lower exhaust Y-pipe nut.
  Torque: 30 lb.ft (40 Nm)
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1. Tighten the RH lower exhaust Y-pipe nut.
  Torque: 177 lb.in (20 Nm)
2. Tighten the RH upper exhaust Y-pipe nut.
  Torque: 30 lb.ft (40 Nm)
3. Tighten the RH lower exhaust Y-pipe nut.
  Torque: 30 lb.ft (40 Nm)
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Evenly tighten the exhaust Y-pipe-to-catalytic converter bolts.
Torque: 30 lb.ft (40 Nm)

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Attach the wire to the retainer and connect the RH side HO2S electrical connector.

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Connect the LH side HO2S electrical connector.

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Check the exhaust system for leaks.