^ On that note, any sound clip for the cat back system? And surely the power gains are only for the turboback? How about gains, if any, for thecat back?
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2019 G30 M550i
GBNF:
2021 G80 M3, 2019 F90 M5 Competition, 2016 F80 M3, 2014 F22 M235i
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