2017-2021 Kawasaki Z900 304 stainless steel header kit.
M4 Performance Exhaust universal header kit for the Z900. The 304 stainless steel system features equal length headpipes and a true high flow merge collector. The system will fit most aftermarket slip-on’s or even the stock muffler. Using the M4 header saves you 10lbs and produces 5+ horsepower over the stock pipe.
Does not meet emission requirements for street or highway use.