Downpipe · ComponentExhaust Flange Boltsfor 2021 Mazda Mazda3 2.5L I4 · FWDUnitslb-ftNmTorque33lb-ft45 NmNotesApply anti-seizeOther components in DownpipeCover Screws8 lb-ft · 11 NmFlange Bolts35 lb-ft · 47 NmHanger Bolts15 lb-ft · 20 NmHeat Shield Bolts7 lb-ft · 10 NmMounting Bolts20 lb-ft · 27 NmO2 Sensor33 lb-ft · 45 Nm📝 Suggest a correction to this torque spec