Flex Pipe · ComponentHanger Boltsfor 2009 GMC Envoy 5.3L V8 · 4WDUnitslb-ftNmTorque19lb-ft25 NmOther components in Flex PipeCover Screws10 lb-ft · 14 NmFlange Bolts44 lb-ft · 59 NmMounting Bolts25 lb-ft · 34 NmO2 Sensor44 lb-ft · 59 Nm📝 Suggest a correction to this torque spec