Put mine on today. To get past the throttle tube, I used my hobby knife/stainly knife/razor and cut away some of the plastic so it sits more flush. Can still see a bit of the throttle tube but it's not as noticable.
One issue I had with them was the right hand side grip is a really loose fit. I had to use some wire to hold the grip in place. Unless there are a left and right grip and i've put them on the wrong side