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FMF Factory 4.1 Titanium Slip-On RCT - Carbon Fiber
FMF Factory 4.1 Titanium Slip-On RCT - Carbon Fiber

$ 494.99 - $ 584.99
10% Off - Save up to $65.00

Item #FMF000Z

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1 Review
5 out of 5 stars
5 Star   1 4 Star   0 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome product

Way better than stock

4 Questions
Answered:   4
Not Yet:   0
Q: Will i need to get a new header pipe. I have a 2019 crf 450r
3 months 20 days ago
Dan Gearhead
Top 25
3 months 20 days ago
A: This will fit your bike as a slip-on, utilizing the stock header.
Griffin johnson
Q: Will this fit on to a 2006 Honda crf250r stock header?
Over 6 months ago
Top 1
Over 6 months ago
A: Yes. You can run this muffler on the OEM header.
Q: Will this work with 2018 Yamaha yz 450 stock header?
Over 7 months ago
Top 25
Over 7 months ago
A: Yes, this will work with a stock header no problem!
Q: Asking for a 17’ crf 450r.. if I go single pipe, is this pipe dimensionaly longer than the dual mufflers? 
Over 8 months ago
Top 1
Over 8 months ago
A: This muffler does not add any length to your existing OEM exhaust system.

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# Part Numbers
Product Variant Manufacturer Part #
Carbon Fiber With Side Panel 041560
Carbon Fiber 043365
Carbon Fiber 044445
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