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08-29-2018, 02:32 PM
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#24
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///M Powered for Life
Drives: E90M/E92M/M4GTS/M4GT4/X5M
Join Date: Sep 2010
Location: Greenwich, CT
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Based on my wonderful experience with HFCs in the primary position, I would not run primary cats at all in a track car. Definitely wouldn't use a test pipe with welded-in HFCs either
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