I haven't heard the Gintani sport system, but BarryC says the the Gintani sport + xpipe/HFC has less drone than the Eisenmann Sport.
My Remus drone's is a tolerable but if you are always going up hills in 6th at 70-75mph, I would not recommend getting it. Actually many exhausts sadly drone right around this level, and it's just how intense or how much it drones is what matters. The mufflers that I know do not drone are the Dinan, OEM, or Akrapovic.
I would think AA doesn't drone due to their NCC's, but people say the AA's still really loud so I'm not sure if that means it's droning or just it's loud.
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2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle
Special Thanks: Gintani | OETuning | eAs
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