Chrome plated 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 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 & Hines exhaust system. Tech tip: Pre-2021 USA crossovers on a 2021-up EU Touring? The FuelPak FP4 (part number 942227) allows you to disable the 2nd. downstream O2 sensor, without triggering trouble codes. This will enable you to use US or pre-2021 EU exhausts/mufflers that are not equipped with a downstream O2 sensor connection.