Quote:
Originally Posted by wpoll
The non-cooled EGR pipe has no flexible section, so no worries there.
One thing I wondered about, after changing my (cracked) stainless exhaust manifold for an XR8 cast manifold, I thought it might be worth obtaining the heat shield from the earlier 3.0d X5 (which had a cast manifold as standard), to reduce the heat-soak from the cast manifold to the boost outlet pipe...
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That thick part on the pipe is the flexi part. There has to be something to allow heat expansion due to quite big temp changes.
Now that you say it I think mine had this heat shield when I renewed the manifold. I also coated the manifold and turbo turbine housing with black satin insulation coating.
