its not that hard 2 put on a speed kit....but on some models it can be hard...if you get one. we'll guide u through it. you should get a bi-turbo exhast...they work. then you should get a 27 tooth speed sproket. they work 2.. my friend has a jawa and is experimenting with speed now...he's putting on a high performance exhast on it...but the exhast is meant 4 a dirtbike....hmmmm cant wait until the results of this. if i were u i wouldn't get a speed kit just yet.....because they are $$. if u can find a good one cheap grab it.
-- a bi-turbo exhast can be put on almost any moped. it may need 2 be welded..but it will go on.