Vanden Plas (X308) V8-4.0L SC (AJ27) (2001)
8. Remove the nuts which secure the front flanges of the front muffler to the downpipe flanges.
9. Remove the gasket from the front muffler flange at each side.
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Reposition the front silencer rearwards.
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Remove the gasket from each flange.
10. Remove the downpipe catalytic converter.
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Remove the bolts which secure the downpipe lower mounting bracket.
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Remove the downpipe assembly.
11. Remove gasket from the manifold flange.
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Clean and inspect the manifold joint faces.
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Clean and inspect the threads on the downpipe studs.