The 71727MI Racing Collectors for the Kawasaki Z 900 (2021-2024) are designed for high-performance applications. Constructed from stainless steel, these racing collectors are built for durability and optimal exhaust flow. They feature a welded mount for secure attachment. The junction outlet diameter is 62 mm, while the inlet diameter and silencer body length are not applicable as this is a header system. Equipped with an oxygen sensor plug but lacking a CO sensor plug and dB killer, these collectors weigh 4.1 kg, making them a robust addition to enhance the bike's exhaust performance.