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FMF

FMF Factory 4.1 Slip-On Exhaust Honda CRF150R / CRF150R Expert 2007-2024

Item: P244177
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With 30 years of racing experience behind it, the Factory 4.1 muffler takes advantage of everything FMF has learned on the race track. The patented co… Read More

$359.99$449.99
$399.99$499.99
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Product Details

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

FMF Factory 4.1 Slip-On Exhaust Honda CRF150R

With 30 years of racing experience behind it, the Factory 4.1 muffler takes advantage of everything FMF has learned on the race track. The patented core shape of the Factory 4.1 Slip-On enhances exhaust pressure for optimal power output while keeping sound levels to a minimum. The compact design not only makes this muffler less susceptible to crash damage, but also centralizes mass by keeping the weight of the muffler closer to the motor and center of gravity.

Features:

  • Horsepower gains throughout RPM range
  • High quality internal packing material for maximum longevity
  • Removable spark arrestor sold separately 
  • 94 dB quiet insert sold separately
  • 100% made in the USA

Weight

  • Titanium/Blue Titanium/Titanium 3.4 lbs
  • Stainless Steel/Blue Titanium/Stainless Steel 3.5 lbs
Made in the USA
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Stainless Steel/Blue Titanium/Stainless Steel RevZilla Item #894424 Store Sku MFR. Product #041289/41289 AvailabilityCloseout: This product is no longer available
Product Style Titanium/Blue Titanium/Titanium RevZilla Item #894426 Store Sku MFR. Product #041291 AvailabilityCloseout: This product is no longer available
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