Triple stepped headers 1.75 in. to 1.875 in. to 2.00 in. for increases of 15-18 HP and 13-15 foot lbs. of torque. Header flows into a mini-cone to create a deep, rich and throaty sound. Equipped with a 2 step baffle 2.5 in. to 3 in. (Quiet Baffle Available). System equals 5 steps throughout for extreme power gains. System reduces heat concentration by 30%. Boasting full-coverage one-piece (220) blue-proof heatshields, available in chrome or ceramic black. Customizable with a show chrome, sculpted black or pitch black tip. Includes O2 sensor ports, plugs and all mounting hardware. Engineered for maximum power. Made in USa.