This is a Aprilia RS660 Exhaust Sound Comparison. The comparison is between Austin Racing, Mivv & Sc Project S1 Exhaust. Make your choice, which one is the best choice for Aprilia Rs660?!

🎥Bikes Owners:
@Joel Cox (Austin Racing🔊)
@Scott Brennen (Mivv🔊)
@Luke Maglalang (Sc Project S1🔊)

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