Akrapovic Exhaust Slip-On Megaphone Yamaha YZF-R6 2006-2015 SM-Y6SO6T Sporty slip-on megaphones offer a great balance between price and performance Deliver a big power and torque increase over the entire RPM range while reducing weight Mufflers are made of titanium to give your bike a MotoGP touch THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE. Oval Titanium Muffler