at 100$ a pop i doubt ill be doing one anytime soon ... id say most of my boost i have over stock comes from execution time response than out out power reading ..but this is just a guess ...my bike mostly all stock parts .....there just not the ones that are suppose to be together...but it has pulled the front wheel off ground at about 75mph when it did it ..certain outside air conditions makes some snappy power in hooch over it monster attitude to start with at times ...pulling the wheel in third gear change only happens on those days ..and has happen only a couple times ......be neat to capture that air condition full time