FMF Powercore Quiet Core Insert

FMF Powercore Quiet Core Insert
FMF Powercore Quiet Core Insert

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Item #FMF002E

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12 Questions
Answered:   12
Not Yet:   0
Q: FMF part number?
1 year 8 months ago
Is this item manufacturers part number 040671? If not which insert has that part number?
MotoSport Staff Expert
1 year 8 months ago
A: No. FMF part number 040671 can be found here:
Q: Will this product work with the powercore 4 that goes on my klx 140L?
2 years 7 months ago
Expert MotoSport Staff
2 years 7 months ago Location: Portland, OR, USA
A: No. The FMF Powercore for your Kawasaki KLX140L would be considered a "Mini" Powercore. This Quiet Core insert would only work with the FMF Powercore Muffers for full-sized 250/450 motocross bikes.
Q: Works with spark arrestor?
2 years 9 months ago
Does this insert work in addition to the spark arrestor on the powercore 4 or does the quiet insert replace the spark arrestor. If it does replace the spark arrestor, is there still a screen in it to prevent sparks?
MotoSport Staff Expert
2 years 9 months ago Location: Portland, OR, USA
A: The quiet core would replace the spark arrestor insert so there is really not a way to run them together in the Powercore 4 exhaust. I would have to recommend looking into the FMF Q4 exhaust if you needed a quieter exhaust with a spark arrestor as well.
Q: Needing allen screws to hold insert in.?
Over 3 years ago
What size & are they available?
MotoSport Staff
Over 3 years ago Location: Portland, OR, USA
A: Unfortunately that screw is not readily available for purchase through our books. For this specific item you can call FMF directly at 310-631-4363. The screw can also be obtained from a local hardware store. Its an m5x10 screw.
Location: hemet
Q: Will this fit a 2010 rmz 450 suzuki stock exaust?
Over 6 years ago
will this fit a stock 2010 suzuki rmz 450 exaust?
MotoSport Staff
Over 6 years ago Location: Tualatin
A: no this will not fit your stock exhaust
Q: New DB law in Colorado Will this fit stock exhaust 06 CRF250R?
Over 6 years ago
Expert MotoSport Staff
Over 6 years ago
A: it will only work on a fmf exhaust.
Location: Western Australia
Q: I have a FMF TI Powercore exhaust with header and megabomb - it is too loud - how can i quiet it down to around 96dB???
Over 7 years ago
08 KLX450. I also have what looks like a FMF quiet core insert but have pulled the muffler apart and it will not fit. I can take a photo of the exhaust and the insert if you like but the insert looks the same as the pictures i see on all web pages.
Over 7 years ago Location: cream ridge, NJ
A: ^^^you may have bought the fmf quiet core for the ti4/factory4. it looks the same but has a different diameter. i have the insert installed on my 04 crf 250s powerbomb and factory 4 systme and it quieted it down substancially. i dont know the exact dB but it passes tech inspection for ecea hare scrambles, works! they sell the quiet core for your exhaust, so it you want to spend the $25 its worth it.
Q: Will this work on a Factory 4.1 Titanium system?
Over 7 years ago
MotoSport Staff Expert
Over 7 years ago Location: Portland, OR
A: Sorry this quiet insert will not fit the 4.1 systems. At the moment FMF has not release one yet. They've listed it as TBA.
Q: Spark arrester?
Over 7 years ago
does this come with a spark arrester
MotoSport Staff
Over 7 years ago Location: Tualatin
A: no this is just a quiet insert, you would need to purchase the Ti Powercore spark arrester screen separately.
Over 7 years ago Location: Arkansas
A: Mine actually did come with a spark arrestor screen in it. FMF may have updated it more recently to have one
Q: Can this insert fit on an mdk speed exaust by fmf 4.1 duel?
Over 7 years ago
i have a crf250r 2008 and i need to quiet this bike down for the woods. also does this insert have a spark arrestor?
MotoSport Staff
Over 7 years ago Location: P+RTLAND
A: Yes, this will fit the dual MDK exhaust and it does have a spark arrestor.
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