This muffler (exhaust) is used on many American Sportworks models. This muffler is compatible with other Chinese manufactured 150cc go-karts.
Compatible / Referenced:
American SportWorks Part #14760 (Zircon, Carbide, 6150)
Specs:
Exhaust Flange Bolt Holes: .3″ (7.54 mm)
Exhaust Flange Bolt Hole Patter: 2″ (50.8mm)
Overall Lengthe of Exhaust Pipe (not including the muffler): 15″
(the straight portion is ~8″ L, each bend ~3.5″ L)