Aggressor 2-into-1-into-2 Header - Black Aggressor 2-into-1-into-2 Header Reduces heat transmission to the rider and passenger by routing the exhaust under the frame instead of under the seat Lighter system offers more flow and makes more top-end power than the factory system Feature 1-3/4" 16-gauge mandrel bent, interconnected headers and 220° full-coverage heat shields Front pipe crosses over to the left side and is securely mounted to the transmission oil pan Crossover pipe is formed from the 1-7/8" tubing for increased ground clearance and no cross-sectional area loss Hidden inter-connect for maximum top-end horsepower, improved low-end torque and sound dampening Includes (2) 18mm O2 sensor ports, plugs and all mounting hardware Accepts any '95-'16 OEM-style dresser mufflers (sold separately) O2 sensor ports and plugs, gaskets and all mounting hardware included Made in the U.S.A. This part is not authorized to be shipped to CALIFORNIA.