Cuervo Racing has one also, I like the idea and use his version on mine. Cuervo version is the same size bolt as the oil tank so you only use 1 socket for both. He sells on EBay as well.
Honestly, I think it should be the same thing. The only thing that could change is the material quality, but I really doubt it. Eventually I will order one and leave a review.Has anyone else used the non Cuervo reducers? They are cheaper if they perform the same.