Honda/Clone  Loop pipe that exits to flwheel side of motor. Will fit  Mini Bikes  Go Karts Drift Trikes and others with 200 or 212 motors.   Loop pipes are the best low and mid RPM pipe available because of the long stages and length.  Short pipes just make more noise not power. Put your $ where the power is.   
Fits Coleman CT200u and others. Will not fit the Coleman X Mini Bikes.                                                Flared end $12.00  (flared end shown in pics)   
RTT muffler $24.50