I used it on my DAYTONA air breeder, but it's too loose. I don't think it will come off while driving, but it's loose enough to prevent dust and dirt. The OEM breeder is not as loose as the DAYTONA, but it is looser than the OEM.
I was often plagued by mysterious stalling on my early FI Vehicles SR400, so I bought the Ravid MotorcycleEasy, which makes fuel tuning easy. The delivery was a bit delayed, but I was still excited to open it and suddenly found a Dial full of Garbage. I thought this was terrible, no matter how much I wanted to! But I still paid a high Gold price for it, so I installed it anyway, but… The installation was not that difficult for the SR400. I managed to install it by removing the seat and shifting the fuel tank a little. If I had to say, it was a little tricky to remove the O2 Sensor Coupler. There's not a huge physical change, but I think Torque has gone up a little. I would like to recommend it to anyone who has the same problem, but it's hard to recommend because the quality is terrible.