gp4

Looking for a "GP" style exhuast for the RC. Something that looks similar to the R3 akrapovic slip-on. I found this one "Amuro GP4 Raceline Raw Slip-On Exhaust", but have not seen it for sale in the USA. https://www.youtube.com/watch?v=tI--tgso5h4 Anyone know of an exhuast sold stateside...