" The built-in Advanced TRE improves part-throttle response in lower gears. It will also improve low end torque at full throttle and disable the speed limiter on 1000cc+ Suzuki bikes. ATRE is a switchable, remappable and automatic TRE. "
From their website. Not sure if it works on the Busa, and not sure if it works period. I've heard people that stated they made the bikes run smoother in low RPMs. Supposedly bypasses the top end restriction. It has been the source of problems and failed to improve performance according to others.
IMHO ECU tuning and tweaking would be a much better route to go.