Shopping CartCLOSE
  • Your cart is empty.
FMF Hi-Flo Header
FMF Hi-Flo Header

$ 224.99 $249.99
10% Off - Save $25.00

Item #FMF001A

Read More
1 Review
5 out of 5 stars
5 Star   1 4 Star   0 3 Star   0 2 Star   0 1 Star   0
Write a Review

Write your review and you'll automatically be entered in our monthly drawing. Include an image or video to DOUBLE your chances to win!

Write Your Review Write a review to win $500
All Reviews
Verified Purchaser
Washington, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
FMF header for XR650L

simple install and looks good! adds some performance I guess, not really notable on a already uncorked XR650L

6 Questions
Answered:   6
Not Yet:   0
Q: I have a 2005 Polaris Predator 500 TLD if I buy an FMF factory 4.1 would this fit it?
Over 8 years ago
MotoSport Staff
Over 8 years ago
A: yes this would fit a FMF 4.1 muffler
Q: Is it any bigger?
Over 10 years ago
Is the diamater any bigger than the stock or does it have the same diameter
Expert MotoSport Staff
Over 10 years ago
A: These are a bit larger diameter than OEM, that is what gives it the HI FLO name.
Q: Will this fit my warrior with the white brothers e serious silencor
Over 10 years ago
Expert MotoSport Staff
Over 10 years ago
A: This was designed to replace the OEM head pipe. Being that you are trying to fit it on another brand, FMF will not specify whether this will fit.
Q: Will the fmf header fit a pro circuit slip on?
Over 10 years ago
MotoSport Staff Expert
Over 10 years ago
A: This head pipe is made to fit your stock exhaust. with that said, if the silencer you have was made to fit the stock head pipe than this will work.
Q: Fmf slip on with header?
Over 10 years ago
i have a 04 kfx400 with a fmf slip-on pipe but will the slip-on fit on the header?
MotoSport Staff
Over 10 years ago
A: Yeah it should fit.
Q: Can i get a header for my predator with two pipes coming off the block.
Over 10 years ago
It's one of the very first that they came out with so it has two pipes for the header comeing off the eingin block.
Top 10
Over 10 years ago
A: To help us to find parts to fit correctly, we will need to know the model-year and complete model description of your Predator.

See all bikes that this part fits...

See Fitments
# Part Numbers
Product Variant Manufacturer Part #
FMF Hi-Flo Header 045037
California Proposition 65

WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to