- Clear reference photos: We provide clear images to help you assess fit. Please verify the size, style, and shape to ensure the item meets your needs. - Installation notes: It can be installed and used without additional modifications, but you should have installation experience or arrange professional installation. Installation instructions are not included. - Compatibility: For Kawasaki Ninja 400, EX400, Z400 models from 2017, 2018, 2019, 2020, 2021. - Design and performance: Unique design with exquisite workmanship and modern styling to enhance your motorcycle appearance. Makes the exhaust pipe profile cleaner and can improve performance, contributing to a more comfortable riding experience. - Applications: 1) Replacing a worn or damaged exhaust component on Ninja 400/EX400/Z400 (2017-2021) to restore look and function. 2) Upgrading for a sportier street or weekend ride aesthetic. 3) Part of a restoration or customization project to maintain consistent styling across the bike.