As the website states, "Maximum gains require supporting modifications (listed below)". The different products work together as a system. Keep in mind that the listed 30hp gain of stage 1 is conservative and you must consider the mid range power gained especially with the ECU tuning. We will be working diligently next week to provide a library of dyno graphs for your perusal of the different modifications.
best regards,
-- Chris
best regards,
-- Chris