This powerful 2-into-1 exhaust is made for all 2010-2012 Harley-Davidson dressers and Road Kings. The power is generated through a series of chambers that help condense and intensify exhaust flow, resulting in a 20 percent increase in both horsepower and torque. The O2 sensor ports accept OEM and aftermarket sensors. Each exhaust includes removable baffles, full coverage heat shields and a limited one-year warranty. The Powerflow III is available in chrome and Sinister black ceramic for $599.95.