Yes, you can often customize your Bajaj Dominar 400 ABS bike with aftermarket parts and accessories. It is like customizing your bike to make it unique and suit your style. These parts are like add-ons or extras that you can choose to upgrade or change the way your bike looks or performs. For example, you can add special exhaust pipes for a unique sound, change the seat for extra comfort, or even add cool graphics to give your bike a distinct appearance.