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      07-28-2009, 03:33 AM   #21
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Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

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Originally Posted by rldzhao View Post
Lucid, if you could take some temp measurements during a track session, let us know.
I've actually measured the exhaust pipe temp at that exact spot on my aftermarket exhaust right after full-on track sessions at ~180C in the paddock, which seems pretty harmless. I suspect the actual average operating temps during a track session like that are actually much higher given the pipe is thin and cools off rapidly, but I didn't pin it down. I think you are right that if running without a shield significantly impacts the CV joints, it would surface in the long term. I don't currently have any issues with my CV joints (I check them regularly).