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Rear Silencer Bypass Non-Valved (Louder) with GT-80 Cerakote Black Trims (OE Twin Left Valance)
Requires rear mounting brackets (Part numbers: 18 30 7 806 567 and 18 30 7 574 951) for the 123d model (available from your BMW dealer)
For Fitment to OE & Milltek Sport Cat Back Systems
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