Astra L4-1.8L (2009)
4. Remove the muffler from the mid muffler.
5. Clean the sealing surface.
Installation Procedure
1. Install the muffler to the mid muffler.
2. Insert the muffler in the bracket in 2 places.
3. Align the exhaust system.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
4. Tighten the muffler fastening clamp.
Tighten the nut 50 Nm (37 lb ft).
5. Lower the vehicle all the way.