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      07-28-2009, 12:42 PM   #23
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Drives: 2011 E90 M3 Comp Pkg Only
Join Date: Nov 2007
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Originally Posted by Nate@IND View Post
When our friends at Fall Line ran an OEM exhaust system, the CV boots did not melt, but after installing their competition exhaust system with no heat shields, they experienced quite a bit of trouble with melted CV boots. Since then, Fall Line has added heat shields to their competition exhaust, and it is this experience that leads me to believe that heat shields are necessary to protect the rubber CV boots.
I have been to Fall Line, they are a very reputable shop and I trust what they say.