2-Cycle Box Mufflers

P/N EXT6010: Yamaha YBX Muffler, 3 Hole

FOR JR/SENIOR SPORTSMAN, THREE HOLD CAN THAT BOLTS TO YAMAHA ENGINES.

P/N EXT6015: Yamaha Superbox Muffler, 4-Hole

SSX OR SSX-V FOR ALL SPRINT RACING, ALL ORGANIZATIONS. FOUR HOLE CAN BOLTS TO YAMAHA ENGINES.

P/N EXT6020: Stock SBX Muffler, 1-Hole

USED FOR ROAD RACE, ONE OUTLET HOLE. USES A 9102 HEADER AND FLEX CONNECTOR.