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FMF 4.1/4.1C Quiet Core Spark Arrestor Insert
FMF 4.1/4.1C Quiet Core Spark Arrestor Insert

$35.99 $39.99
10% Off - Save $4.00

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Description See Also: 1 Review 16 Questions Part Numbers WARNING
Item #FMF00GJ

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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
All Reviews
Jerry
3 months 13 days ago South Dakota
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Great features!!

It’s nice it made my sons bike nice and quiet.
And quality was great

16 Questions
Answered:   13
Not Yet:   2
Justind1985
Q: Will this fit the fmf factory 4.1 mini system for 2008 KLX110?
2 months 27 days ago
Mike
Q: Will this fit my PowerCore 4 on my Crf450r?
Over 5 months ago
PringlesCanMan
Q: Is this the 1 1/8 in. quiet insert?
Over 6 months ago
Paul
Top 10
Over 6 months ago
A: The FMF 4.1/4.1C Quiet Core Spark Arrestor Insert is exactly the correct size to fit the FMF Factory 4.1 and 4.1C 4-stroke exhausts. It is not intended for other mufflers.
Rudy
Q: Will this fit my 1984 Honda 200s atc?
Over 6 months ago
Chowe
Top 25
Over 6 months ago
A: This insert is designed to fit in the FMF 4.1 and 4.1c slip on exhaust. It is not compatible with stock slip on exhausts. If you have any questions give us a call at 1-888-676-8853.
Honda619
Q: Are these the same as 040673 fmf 4.1 rct and are they sold in pairs or individual
Over 7 months ago
Tyler Gearhead
Top 50
Over 7 months ago
A: Yes this is the same product as the FMF P/N 040673, they are sold individually.
kawan
Q: Will this fit the fmf force 4
Over 9 months ago
monte
Q: Will this fit a FMF 4.1 RCT exhaust
Over 10 months ago
Dan Gearhead
Top 25
Over 10 months ago
A: Yes this will fit a FMF 4.1 RCT exhaust.
JerryGearhead
Top 25
Over 10 months ago
A: Yes it will, they use the same type of design in the end cap.
tony
Q: I'm not sure what FMF pipe I have because the branding has been removed, it's fitted to my KLR650 and the pipe opening is 40mm, it has a hole in the same place as this insert does. Will it fit?
Over 11 months ago
Michael
Top 10
Over 11 months ago
A: If there is any type of serial number, usually on the inside of the pipe towards the exhaust port, you can contact FMF directly to find out which canister you have.
Paul
Top 10
Over 11 months ago
A: The slip-on mufflers recommended for the KLR650 are the Powercore 4, part number 042319, and the Quietcore 4, part number 04321.
It would be best to call FMF at (310) 631-4363 to describe the full details of your muffler, and determine which spark arrestor is correct.
Your
Q: Will this fix on my powercore 4 on my 2002 Honda xr80r
1 year 1 month ago
TylerGearhead
Top 25
1 year 1 month ago
A: No this is for the 4.1/4.1C from FMF
Drome
Q: Does anyone have install instructions for this product? thanks in advance
1 year 3 months ago
MotoSportExpert
1 year 3 months ago
A: FMF racing has the installation manuals for the pipes and inserts at the following website

http://www.fmfracing.com/ProductManuals/ProductManuals
1 - 10 of 16
# Part Numbers
Product Variant Manufacturer Part #
FMF 4.1/4.1C Quiet Core Spark Arrestor Insert 040304
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 www.P65Warnings.ca.gov.

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