What's the biggest, "waste of money mod," you've ever spent on your bike?

I've seen all kinds of suspicious EBay mods that I know would break after 5 minutes and several cases of instantaneous buyer's remorse.However, I'm wondering what money pits everyone has fallen into.Did a project go bad and wreck your wallet or just your hopes?How about cheap mods that left you feeling sour? Are those worse? via /r/motorcycles https://www.reddit.com/r/motorcycles/comments/dqe0ix/whats_the_biggest_waste_of_money_mod_youve_ever/?utm_source=ifttt