I added to my 2018 M550i an Audio Audiocontrol 1.300 Amp with built in LOC and a JL Audio 10W3 in a side enclosure. Plug and play utilizing a Technicpnp harne.
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2018 BMW M550i | BM3 stg 1 | Resonator Delete (X-pipe) | Dark Graphite Metallic
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