I'm taking some of the bits off my bike for when I part ex/sell it, so I've got a Booster Plug for sale. Its done about 1500 miles, and was removed from my 2018 Bobber. Full working order and boxed. There is it a bit of cracking to the plastic module/box which I only noticed when I removed it, but it doesn't affect the working of it.

£100ono. I'm in SW London.