Just finished fitting B9 S4 6 piston calipers to B8.5 S4... it's a pain, but can be done, and far more cost effective than other BBK's : r/Audi
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Audizine Forums
Audizine Forums
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StopTech 83.114.6700 355mm ST-60 Big Brake Kit Audi B8 S4 and S5 - Achtuning
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