I believe that 100%, but it's 100% illegal in my country and within all EU, i do not know about the US. In my country you have a inspection every year, and even you find a garage where you get approval for the next year it's much too dangerous because of frequent Police controls with test-bus for exhaust fumes and sound volume. You loose your licence plate if they find modifications.
So, other mapping and an exhaust with legal sound (whats documented for that bike) are the only options without too much risk.