Lexus IS250 IS220d GSE20 ALE20 2AD-FHV EXHAUST
EXHAUST PIPE - INSTALLATION
1. INSTALL TAIL EXHAUST PIPE ASSEMBLY |
Install the tail exhaust pipe assembly with the 4 exhaust pipe supports.
2. INSTALL FRONT EXHAUST PIPE ASSEMBLY |

Using vernier calipers, measure the free length of the compression springs.
- Minimum length:
- 38.5 mm (1.516 in.)
If the free length is less than the minimum, replace the compression spring.

Fully insert 2 new gaskets to the exhaust manifold converter and front exhaust pipe assembly by hand.
- NOTICE:
- HINT:
- Using a plastic hammer, uniformly strike the gasket so that the gasket and front exhaust pipe are properly fit.
Install the front exhaust pipe assembly.

Install the 2 bolts and 2 compression springs.
- Torque:
- 43 N*m{ 439 kgf*cm, 32 ft.*lbf}
- NOTICE:
- After installation, check that the clearance is almost the same at any point between the flanges of the tail exhaust pipe assembly and front exhaust pipe assembly.

Install the 2 bolts and 2 compression springs.
- Torque:
- 43 N*m{ 439 kgf*cm, 32 ft.*lbf}
- NOTICE:
- After installation, check that the clearance is almost the same at any point between the flanges of the exhaust manifold converter and front exhaust pipe assembly.
3. INSTALL AIR FUEL RATIO SENSOR |

Before installing the air fuel ratio sensor, twist the sensor wire counterclockwise 4 turns.

Using SST, install the air fuel ratio sensor to the front exhaust pipe.
- SST
- 09224-00010
- Torque:
- 44 N*m{ 449 kgf*cm, 33 ft.*lbf}
4. INSTALL FRONT CENTER FLOOR BRACE |

Install the front center floor brace with the 4 bolts.
- Torque:
- 7.4 N*m{ 75 kgf*cm, 65 in.*lbf}
5. INSTALL REAR NO. 1 FLOOR PANEL BRACE |

Install the rear No. 1 floor panel brace with the 4 bolts.
- Torque:
- 19 N*m{ 195 kgf*cm, 14 ft.*lbf}
6. INSTALL FLOOR UNDER COVER |

Install the No. 1 floor under cover and No. 2 floor under cover.
7. CHECK FOR EXHAUST GAS LEAKS |
If exhaust gas is leaking, tighten the related parts to stop the leak. Replace damaged parts as necessary.