Kawasaki 520X106 For Tusk 2023 Chain Gold Klx230Sm 520 X Ring Bolts directly to factory head Bolts directly to factory head pipe Will accommodate all emission control devices Designed as a direct fit replacement for OEM exhaust manifolds Extra thick 3 8†flanges for a leak free seal Sturdy 16 gauge tubing Mandrel bent tubing for smooth exhaust flow Complete with premium gaskets and hardware It is engineered with ultra low profile ear cups with rubberized coating Noise Reduction Rating (NRR): Delivering an impressive Noise Reduction Rating (NRR) of 23 dB Gold colored plating protects from corrosion European quality manufacturing and materials Average tensile strength 8 120 lbs Clip style Master Link included