FMF Racing Factory Fatty 2-Stroke Exhaust Pipe

FMF Racing Factory Fatty 2-Stroke Exhaust Pipe
$197.99 - $224.99
Save $ (%)
This item qualifies for Pit Pass Rewards points.
Ships To You:
Select options to see availability.
Store Pickup:
Select options to see availability.
Item Number:
Select options to see item number.
Share and Save
Earn points towards rewards vouchers by sharing this with friends! Learn more »
  • Details
  • Reviews
  • Q & A

FMF Racing Factory Fatty 2-Stroke Exhaust Pipe - Details

The FMF Racing Factory Fatty was once only available to factory race teams. This pipe is based on the world famous Fatty but constructed from a thinner gauge metal with hand pounded seams materials and techniques that make a true "works" pipe. The Factory Fatty is renowned for its thick and linear power band - always with power on demand. No matter what type of riding you do, the Fatty has the benefits you're looking for.

  • Unplated carbon steel 2-stroke motorcycle exhaust pipe reminiscent of the cone pipe used by factory dirt bike race teams
  • Constructed of materials and techniques that make a true "works" pipe
  • Lighter 20 gauge steel used for the body of the pipe with heavier 19 gauge steel used for the header portion
  • Hand pounded seams provide smooth flow transitions and a superior flow
  • Boosts gains throughout the entire power band, more low end, more mid, and increased over-rev
  • Broader, smoother power band with the factory sound
  • More tractable power, better throttle control
  • Includes O-rings

Note: For closed course competition use only. Not intended for street use.

Note: Image for reference only. Actual product may vary according to vehicle.

Note: This product may not be legal for sale or use in California or in other localities due to state and/or federal anti-tampering laws. Refer to before purchasing.


FMF Racing Factory Fatty 2-Stroke Exhaust Pipe - Reviews

Do you own this item? Share your opinion with other motorsports enthusiasts.
Be the first person to and you will receive 10 rewards points when it is approved.
Questions and Answers

FMF Racing Factory Fatty 2-Stroke Exhaust Pipe - Questions and Answers

Have a product related question about fit, features, or functionality? Ask your question here and get answers from fellow riders.
If you have a question about availability or need immediate assistance, or call 1-800-841-2960 to speak with our motorcycle experts.
I own a 2014 250 sx with a 300 cc big bore kit; does FMF or any other manufacturer make a 300 cc specific pipe for my bike?
Ron M
No, the pipes that they make are for the oem displacements. The 250 pipe will work for you no matter how big you bore the cylinder.
Chaparral Motorsports
Feb 02, 2015
Was this helpful? Yes (0) No (0)
HI, Will this o5 fmf factory fatty fit and run good on a 03 kx 250 if I do a little welding on the brackets?It looks very similar to a 03 chrome Fatty and this is for an 05 to 07.I know the frame was changed a little,but I think it will fit with a little work. I don't want a chrome fatty pipe on my bike. Welding new attachment brackets and cleaning maintaince is not a problem. I was a machinist for 15 years.Will this pipe run on an earlier o3 kx? Anybody know? Thanks
Fred C
No, this pipe is for the 2005 and up.
Chaparral Motorsports
Jul 31, 2014
Was this helpful? Yes (0) No (0)
You may also like these items
Recently viewed items