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1-3/4 head pipe steps to 1-7/8 into the collector to increase flow and improve performance
Increases output from stock motor as much as 3hp
Check OEM part number for the correct application
Come with sealing gaskets
Accept 12 mm cable
FMF Q4 Muffler 041287 1821-0543 Clutch Shell 1-3/4 head pipe steps toThe Q series features advanced engineering to precisely locate baffles and chambers to absorb sound Less mass to enhance power to weight ratio Quiet power with minimal sacrifice for performance Developed over years of championship off road racing Twin stage core design for lower sound output and extended life of packing material Comes standard with spark arrestor