SPARK ARRESTOR

Graydon Proline's four-inch four stroke spark arrestors will give you a tunable performance.  You can quickly add or remove the diffuser disc to control exhaust flow.  A higher number of diffuser discs reduces back pressure and allows your engine to turn higher RPMs.  Tuning or matching the spark arrestor to your engine's power curve is easy.  Simply add or remove discs until you feel the performance you are looking for!