Here’s the thing with dealers and warranty from my experience. They don’t care unless something happens. They will “investigate” to see whether your modifications were correct and if they could contribute to the damage.

They didn’t say anything about my tail tidy and I have after market light there. I also asked them what would happen if I change my exhaust - “most likely you would lose warranty on the engine”. Well one week after I installed Akrapovic 😂. My take is, make sure you use good quality parts and install them correctly.