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Originally Posted by dunderhi Be warned, on my F10 the Dinan exhaust had a small amount of drone between 1,500-2,000rpm when new, but it faded away over time. I probably have 10kmi on my exhaust now and I still love the more aggressive sound. It now sounds like there's 500hp under the hood.

The first 100 miles or so there definitely is quite a bit of drone, but it calms down to a nice deep throaty sound. I love it.

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2010 750i M Sport, Dinan Stage 3, 22" Agetro rims, H&R sport springs, RDsport front lip, video in motion, AlpineMSS HID 8000k. All exterior chrome, roof, roof spoiler and everything behind wheels painted black, wing, side and rear reflectors and door handle trim painted white, light smoke on tail lights. Audio: focal separates, earthquake low profile subs under front seats (crossed over as mid base to support the tiny 4" fronts), arc audio amps, audiocontrol lcq-1 and epicenter, (2) L7 subs.