Don't settle for making your Harley-Davidson look and sound better-make it run cooler and go faster too. The Power Duals Exhaust, made by the experts at Vance & Hines, feature Power Chamber hidden crossover technology behind the heat shield, which reduces the heat generated on the left side. This heat reduction gives a cooler ride to the passengers and protects vital engine parts and side covers from heat damage. The Power Duals also enhance performance and use Super Bung O2 sensor ports that can accommodate 12mm and 18mm O2 sensors. To complete your upgrade, purchase your new pipes with any Vance & Hines slip-on mufflers for Harley-Davidson Touring motorcycles.