Khrome Werks 2-Into-1 Outlaw-Sr Exhaust System378079350 Product Description Engineered for maximum torque and horsepower from stock to the largest displacement build Removes OEM catalytic converter to reduce heat and improve rider comfort 2 step head pipe (1 3 4" 1 7 8") 2 1 2" high flow baffles wrapped in stainless steel wool and high temperature fiberglass 2 1 2" tapered baffle exit cone to enhance low end torque 18 mm and 12 mm O2 sensor bungs welded into header primaries for street legal