The Slash Cut muffler for Kawasaki’s most powerful production motorcycle is ready to take your supercharged Ninja H2 to the next level. Designed in-house by the Brock’s Performance team of national championship-winning product engineers, tuners and racers, the Slash Cut muffler was developed with input taken directly from H2 owners via internet forums and other social media. Those same H2 owners were then able to follow the development process online through our videos, photos, sound clips and dyno charts.