sry if i come off like an ass sometimes but i have seen so many new ppl in SF go for kits n and big setups that require alot of custom parts and shit right off the bat and FAIL.
I would suggest stepping up more gradually to familiarize yourself more with the machine and its characteristics, there are many other variables and things that need to be considered on the ped than just slapping on a big kit and big pipe such as considering what happens when you double the designed max speed and rpm of you machine. I'm not saying you can't do it but, you basically have to rebuild the entire bike (motor-wheels) and spend alot of $$ if your gonna do it right, and I'm a firm believer in building it right.
and if you do manage to build it right the 1st time and tune it perfectly into a reliable blast machine then my hats off to you. Personally i have never seen anyone do this b4. most new ppl who try either seize, breakdown over and over, or crash on their 1st ride with creatures.
I'm merely suggesting you take the same path I have taken to fast bikes: taking it slow and learning what each part does and how everything really works, and more importantly how everything breaks.. of coarse if its not your main form of transportation then your risking alot less and by all means jump in there. I often forget most of MA doesn't use mopeds as such,.my advice is always biased towards using ones ped as their primary transportation.
goodluck and get wrenching!