They should be bolt on. And i feel like they are plug in play. Justin had a set on his bugeye back in the day. The light output seemed pretty weak on them. But i know that they use to sell HID kits for them too
https://accounts.craigslist.org/eaf...3NxK8AXnDQk_5lRZfToCnON3wJuHlVGenRoKsQBKX5T4q We have decided not to pursue these for other reasons not related to the lights themselves. The owner has been very accommodating and responsive.