2006-2020 Lexus GS 350 Downpipe Torque Specs

3.5L V6

Applies to 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020 Lexus GS 350

Labor Time:2 hours

🔧 Torque Values7 specifications

Component	lb-ft	Nm	Notes
Cover Screws	9	12	—
⚠️ Exhaust Flange Bolts	33	45	Apply anti-seize
⚠️ Flange Bolts	40	55	—
Hanger Bolts	17	23	—
Heat Shield Bolts	7	10	—
Mounting Bolts	23	31	—
⚠️ O2 Sensor	33	45	Apply anti-seize to threads only

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

2022-2024 GT-Line Dual Motor AWD

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

The primary torque specification for downpipe on a 2006-2020 Lexus GS 350 is 12 Nm (9 lb-ft).

There are 7 torque specifications for downpipe on the 2006-2020 Lexus GS 350 3.5L V6, covering all related fasteners and components.