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      01-23-2019, 07:02 PM   #2
ezaircon4jc
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Drives: 2019 540i M Sport
Join Date: Jan 2015
Location: San Diego

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The diffuser on the non-M Sports isn't replaceable. The bumper must be cut and then a diffuser fitted. Not an easy prospect, but it has been done.

Likewise, the exhaust will have to be fabricated to make it a dual set-up.
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