exhaustMuffler Torque Specsfor 1990 BMW M3 2.3L I4 S14 · RWDUnitslb-ftNm4 fastenersSeqComponentTorqueAngle—Clamp BoltsCritical40 lb-ft · 54 Nm——Flange BoltsCriticalApply anti-seize30 lb-ft · 41 Nm——Hanger Bolts15 lb-ft · 20 Nm——O2 SensorCritical35 lb-ft · 47 Nm—📝 Suggest a correction to this torque spec