Downpipe Torque Specifications

2011-2015 Kia Optima 2.4L I4

Labor Time:2 hours

Torque Values (8 specifications)

Component	Nm	lb-ft	Notes
Cover Screws	11	8	—
⚠️ Exhaust Flange Bolts	45	33	Apply anti-seize
⚠️ Flange Bolts	47	35	Apply anti-seize
Hanger Bolts	20	15	—
Heat Shield Bolts	10	7	—
⚠️ Manifold Nuts	34	25	Apply anti-seize
Mounting Bolts	27	20	—
⚠️ O2 Sensor	45	33	Apply anti-seize to threads only

The primary torque specification for downpipe on a 2011-2015 Kia Optima is 11 Nm (8 lb-ft).

There are 8 torque specifications for downpipe on the 2011-2015 Kia Optima 2.4L I4, covering all related fasteners and components.