I have an '01 Drifter 1500, so our bikes are quite similar. My motor is all stock except for V&H Longshots and I marbled the reed valves. If you have no intake mods and you're adding these pipes it's no problem and you won't need a digital processor or a power commander. You will probably need to block off the reed valves though, or you'll have a lot of popping from the exhaust between shifts and on deceleration. You'll find instructions here: http://www.gadgetjq.com/smogstuffremove.htm