mine is an everyday rider, stretch 8 and lowerd 3,
it really depends on how you ride, as to how much it will affect you. if you like to whellie, those will be out of the pic, if you like drag racing it will help you alot, if you go to "track days" and do all the twisties the will affect you as well, if your just riding and cruising around it wont be as bad on you.
extensions, brake line, and chain will be what you need, i personally would go at least 6 inches though.
....zoom zoom bishes