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PowerCoreS mufflers are computer designed then dyno and rider tested for every application. All of these mufflers have a square, perforated stainless steel inner core which provides optimum flow and an authoritative sound thanks to FMF’s Hi-Flo technology.
+++ FMF Racing street exhausts are intended for racing only and are not street legal, DOT approved, EPA approved and may also render the motorcycle illegal for use on public roads. +++