18-23 Kawasaki Ninja 400/Z400 M4 Full Stainless System With X96 Muffler
M4 Full Stainless System With X96 Muffler X96 carbon fiber muffler Saves 5lbs over stock Compatible with stock passenger foot peg or supplied race bracket and brake reservoir relocation bracket M18 O2 bung for use with aftermarket fuel controllers Stock dB is 87 @6,000 RPM M4 dB is 99 @6,000 RPM