FMF Powercore 4 Hex Muffler Beta 350-480 RR | 045666 black Many KTM models have extra

Many KTM models have extra inner clearance inside the stock throttle housing

MADE IN USA

less shipping and handling

2006-2009 Yamaha YZ450F

350 SX-F (2011-2015)

FMF Powercore 4 Hex Muffler Beta 350-480 RR | 045666 black Many KTM models have extraWhen designing the PowerCore 4 HEX, FMF looked at top of the line products to deliver race inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank. Overall increase in power and torque. Durable stainless steel and aluminum construction. Space Age internal packing material for maximum longevity. Internal shape of core uses