Whilst researching variable velocity stacks, I stumbled across Yoshi's dual stacks. Then whilst playing with some spare stacks I had an idea, that I could create something similar. I had previously reduced the standard stacks by 30mm as part of the Big Airbox mod I did last year. So here is the result of my tinkering. Not run the bike yet, but will test tomorrow. This is only possible because I did the Big Airbox mod, which increases the clearance in the box, these stacks would not fit under