Hi from Northern CA
I have a 80cc ebay motor on a Schwinn Southport. I have the kit exhaust still but I am looking for a larger power band, do you know where to get a tuned pipe? I live on a steep hill and weigh 270-280 I have a 44 tooth rear sprocket, and I have to help it quite a bit, unless I take the end off the exhaust, but then I can't get high speeds on flats. Can anyone give advise please? Thank you.