Linking here to our sister site Triumphrat, where someone posted Dyno data on the Booster Plug, which I know many of us here have. As you can see, the post inspired lots of discussion, which I have only quickly read through. I've thought about taking my booster plug off, and this makes me think about it more, but for now am undecided.
I know I've ranted on in the past about how I consider the Booster Plug to be a complete rip-off. I've never claimed it does nothing, but have stated that it makes performance worse, is marketed misleadingly by claiming it's as good as a PCV, and only "remove snatchiness" by making the bike...