Customizing motorcycles is a widespread enthusiasm among enthusiasts, and many NS400Z owners want to have their bikes personalized. This model is seeing aftermarket support grow, with performance parts, cosmetic upgrade and ergonomic modification becoming available. Some like to keep their bikes stock for warranty reasons and some like to tinker and upgrade. That exhaust systems, ECU remaps, suspension upgrades and cosmetic changes such as wrap jobs and custom paint are all common modifications. Whether you get the best bang for your buck or the highest performance gains is up for debate. Furthermore, some owners wanted to go further than that by building a unique cafe racer or streetfighter build based on the NS400Z platform. Many are trying to find a balance between improving the bike and keeping it reliable.