The SC Project Stainless Steel 4-2-1 Exhaust System for the sc-project-stainless-steel-4-2-1-compatible-with-sc-project-range-for-z900-17-19/ Kawasaki Z900 (2017-2019) is a high-performance exhaust solution designed to enhance both the power and aesthetics of one of Kawasaki’s most popular naked sportbikes. The Z900, known for its thrilling performance, aggressive styling, and versatility, can be further elevated with the addition of this exhaust system, which combines SC Project’s renowned engineering and superior materials. The 4-2-1 configuration, crafted from durable stainless steel, offers notable performance gains, improved throttle response, and an exciting sound profile, all while providing a sleek visual upgrade to the Z900’s already striking design.