MOPED ARMY

Hey dOn...I have a bi-turbo and they ads for them say they could add up to 10 mph on your moped....the usually do, like to the other ppl said, add only about 4 to 6 at max. Throttle power is better, and the you would notice a more generated thrust would your moped. Or, you could just buy a 60cc or 70cc kit with a new engine that comes with the bi turbo exhaust, and spark up that old moped of yours :)