It's not vital to up-size the pilot, the main will help with increased fuel and over all top speed. the pilot will help too. but you don't need to.
I have the NOB1 AL and i just up-sized my main only with custom filter and iridium plug with full synthetic oil. I have increase in top speed, and i am not dreaming when i say that. with my big tires my top speed was 110klm, now with all this added + 16/42 sprockets and a new 428H chain i can get back up to 120+ with out back wind.