I have a 2000 tomos targa lx in great condition and stock. I want to make it go faster now that I live in a city and would like to really get around on it. I don't necessarily need so much more top speed because you can't go that fast around me, but I would like to increase my pick-up. I was told to add a biturbo exhaust which would increase the pick up and top speed, but for my moped that store would have to heat it and bend it to fit the bike. I bought one yesterday from a place that told me it would fit, but it doesn't and it definitely needs modifications. Are there any places that sell ones that fit? Also, the store I went to yesterday told me to upjet the carb with a 60. Will that have a large effect if I add it on without the biturbo or does one essentially go with the other? If they put the 60 upjet in do I need to do anything else or will it just go fast with it in? Any help is much appreciated as I am very new to this and don't know much about engines.