Do the base motor work then add boost, if you don't then you have to go back when you get used to the new power and start to look for more but have to do a complete tear down instead of just bolting on more HP.
Do the base motor work then add boost, if you don't then you have to go back when you get used to the new power and start to look for more but have to do a complete tear down instead of just bolting on more HP.