Hi there. I have just purchased a brand new Bullet RR 50cc and wondered if fitting a pipe only will make any difference other than sound cool? I don't want to do any other mod other than rejet and colder plug if needed? Has anyone actually just done a pipe and had good results. If so what pipe did you use? I am quite comfortable doing any work on the engine but want it to be as reliable as stock. I also mean the RS as well as same scooter I understand as far as pipe fitment is concerned.