Matte black ceramic coated finish. Individual crossover head pipes (true duals) offer the traditional look and are best in giving the distinctive H-D potato-potato sound. 2-1/4" 220° full coverage heat shields give this head pipe set a massive look and a long lasting finish. Special propriety bends in combination with stock 1-3/4" diameter pipes provide the best possible horsepower and torque from your engine. The hidden Power Chamber hidden crossover gives the performance characteristics boost of a 2-1. These PCX Dresser Duals feature the Vance & Hines innovative PCX™ Technology which uses chambered high-flow catalysts and stepped headers to further boost torque for more responsive acceleration; and positions the catalysts downstream to optimize rider comfort. Can be used with stock mufflers or add a pair of Vance & Hines slip-ons for maximum performance; torque and great sound. Note: Slip-on mufflers are available separately. - PCX™ (Power Chamber Exhaust) technology - Chambered high-flow catalyst cartridge designed to increase torque - Full coverage heat shields. 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 s