Vance and Hines Power Duals Header Pipes for Harley Davidson 2009-2016 Touring- One Size It&#39;s time to get serious about the performance of your bike. Power Duals are your ticket to style, quality and performance. More than just individual head pipes, Power Duals integrate an exclusive Vance & Hines Power Chamber hidden behind a contoured heat shield that generates more horsepower and torque than stock. This new right side design eliminates the heat issues on the left side for the passenger, routing hot exhaust gases below the footpeg and protecting vital engine components and side covers from heat damage. Power Duals are fitted with oxygen sensor ports making them a seamless power upgrade from stock.For the most complete performance package, pair Power Duals with any of the Vance & Hines slip-on mufflers (sold separately) designed specifically for the Tour