I sent the old rusty pipe off my 1953 Schwinn Whizzer , with a 300 series engine , to Joe in Taiwan to have it exactly copied . I received 115 great pipes that will fit right on a H , J 300 , 700 engine . It fits right into the lower engine pipe mount and is level with the rear axle , A great echo tube that sounds great also!! Quinton , from EZ motorbike put one on his bike at Portland , then sold the bike . If you are a dealer,and want 5 or more call me for the price . They are packed 5 in a carton.