A8L V8-4.2L (BFM) (2004)
Installing
‹› Replace the self locking nuts.
‹› Replace the gaskets.
‹› Replace the sealing ring for the oil dipstick guide tube.
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Installation is performed in reverse order.
Tightening Specifications
Catalytic Converter with Front Muffler
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Remove the noise insulation fasteners - 1 through 4 - and noise insulation.