' Most of that stuff you should put on yourself. Very little of it requires much skill. You'll save a lot of cash that way. And its fun. 3 beer limit while installing. Otherwise you might under/over tighten stuff. Amazon can supply most of that stuff. At 1/2 the price Honda charges. Wait a few months for anything that you can't get a good deal on. If you're willing to pay Honda price, I would look at SWMototech for accessories. I don't know about the warranty question. You'd have to ask the dealer.