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      01-03-2020, 03:08 PM   #35
mrspecter
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Drives: 2011 M3
Join Date: Nov 2017
Location: Long Island, NY

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Forgive me if this is a stupid question, but I don't know much about piping.
I noticed the street pipe does not say full bolt on like the race and sport x pipes, instead it says it has a "flanged design for easy installation."

Does this mean there is some fabrication/welding required?