Often imitated; never duplicated. Power Duals header pipes are the standard for high style performance on late model baggers with the contoured collector shield; crowned with the iconic Vance & Hines V-Twin crest. The Vance & Hines innovative PCX™ Technology; which are equipped with chambered high-flow catalysts combined with stepped headers; to increase mid-range torque for more responsive acceleration off the line/out of corners and is positioned downstream to optimize rider comfort. Power Duals are a perfect match with all Vance & Hines Touring slip-on mufflers. - PCX™ (Power Chamber Exhaust) technology - Chambered high-flow catalyst cartridge designed to increase torque - Catalysts repositioned downstream for rider comfort - Full coverage heat shields - Chrome plated finish - 49-State emissions compliant. Vance & Hines innovative PCX™ Technology explained: More Power & Less Heat. The PCX™ (Power Chamber Exhaust) Technology are factually chambered high-flow catalysts. Used to increase mid-range torque for more responsive acceleration off the line. They are positioned downstream for up to 20% less heat at the floorboards / foot pegs and 50% less heat at the collector; to optimize rider comfort over the stock system. PCX™ technology uses a high-flow double-matrix catalyst that improves torque delivery through the mid-range for more responsive acceleration. All while producing an even deeper full-throated rumble; all with no compromise to the styling of any Vance & H