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FMF Powercore 4 HEX Slip-On Exhaust
FMF Powercore 4 HEX Slip-On Exhaust

$305.99 - $314.99
10% Off - Save up to $35.00

Item #FMF000A

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30 Reviews
4.8 out of 5 stars
5 Star   27 4 Star   1 3 Star   1 2 Star   0 1 Star   1
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All Reviews
Nj
Durability 5/5 Ease of Installation 1/5 Performance 1/5 Power 1/5 Style 5/5
Don't fit 2017 crf250l rally

I bought it doesn't fit the 2017 CRF250 rally everyone's crazy on here

Midland, Mi
Durability 5/5 Ease of Installation 3/5 Style 5/5
Need a new clamp

I bought this and shipped super fast, was at my house in 2 days. However, the stock clamp for my exhaust (18 kx 250f) will not fit this pipe and this pipe didn’t come with a different size clamp. I had to go order one from the local shop.

Where this one attaches under the rear fender is slightly different as well. It fits well, however the stock bolt ends up being very long and hangs out over the tire, not a huge deal though.

Once I get it properly installed, the review will be updated.

Expert MotoSport Staff Verified Purchaser
Newberg oregon
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Super clean

Super clean look, very easy install, completely changed the sound of the bike with the powerbomb on 2017 crf250L

Brockton, MA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Amazing Muffler!

Received this muffler in the mail yesterday, and one ride after the installation I am already impressed. Bought this for my CRF250L, and the sound it produces now is amazing. It also eliminates any top-end bog that the bike had before. There is definitely a noticeable difference, and it is a good one. I would definitely recommend getting this muffler for your bike. It adds a nice smooth feel and an amazing sound.

Verified Purchaser
Paul
Durability 5/5 Ease of Installation 5/5 Performance 4/5 Power 4/5 Style 3/5
Aftermarket

Installed in 10 minutes. Perfect fit. Slightly louder sound, with backfires. Good sound. Same weight as factory muffler...should have bought a more expensive muffler for weight savings. Muffler not in stock so not shipped right away. Called. Listened to 15 minutes of recorded propaganda about how good they are about sticking popular items. Shipped the next day. Slow free shipping.

Ohio
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Incredible

I couldnt get one for a while it is worth every dollar makes it sound almost like a motocross bike its epic

Expert MotoSport Staff
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome upgrade!

I bought this to replace an out dated White Bros. E-series pipe and I cannot believe the difference. Not only in power, but the sound is more crisp and is about half the weight of my old one.

Verified Purchaser
Refugio tX
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome pipe has good sound

I had one before on a 2007 KX liked it then so I bought another one for my 2017 KX450 like it now great pipe I would recommend it to anybody awesome pipe you need to go get one

Atlanta Georgia
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome product!

I bought the exhaust Wednesday night and it was at my door by Friday at quitting time! Very happy with the fast shipping! As far as satisfaction it exceeded my expectations! I put it on my 2018 raptor 700 and it sounds AMAZING! I would definitely buy this product again! And great price as well!

Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 4/5 Style 4/5

See 10 More Reviews
19 Questions
Answered:   17
Not Yet:   2
Rick
Q: Is the spark arrestor and quiet core combined? I want maximum sound and flow with the spark arrestor in! I have seen some FMF that the spark arrestor is part of a size and sound restriction and I do not want that. I want the sound loud with arrestor in
6 days 19 hours ago
Paul
Top 10
6 days 19 hours ago
A: The FMF Powercore 4 HEX Slip-On Exhaust includes the Spark Arrestor. The Spark Arrestor is removable.
The only way to achieve maximum sound and flow is to remove the spark arrestor.
DanB
Q: Which spark arrestor?
Over 8 months ago
just ordered the FMF Powercore 4 HEX, forgot to order the spark arrestor. can anyone tell me which one will fit this exhaust?
robert
Top 10 Contributor
Over 8 months ago
A: The Hex will Include a removable spark arrestor.
Beech434
Q: How loud is this exhaust?
Over 8 months ago
Will it be under 96 decibels?
David
Top 10 Contributor
Over 8 months ago
A: It will be over 96 decibels. You'll need to purchase the FMF quite insert to bring it below 96 decibels.
Mauro
Q: What is the approximate weight
Over 9 months ago
David
Top 10 Contributor
Over 9 months ago
A: Which bike are you putting this on? Weight will vary a little. Weight is roughly around 6-7lbs.
Husqy
Q: Do you sell the quitcore insert for this item?
Over 10 months ago
Where can i find it?
David
Top 10 Contributor
Over 10 months ago
A: I included a link below.

https://www.motosport.com/fmf-powercore-quiet-core-insert
Husqy
Q: Do i need to change mapping crf 250 rally 2017
Over 10 months ago
David
Top 10 Contributor
Over 10 months ago
A: Typically on slip-ons you don't have to but if you want optimal performance I would suggest it.
Nofear32
Q: Does this come with a carbon fiber end cap?
1 year ago
robert
Top 10 Contributor
1 year ago
A: No it comes with a stainless steel end cap.
Mikey35
Q: Will this exhaust fit clean onto a stock header for a 2017 raptor 700r?
1 year 7 months ago
Also please let me know if there's anything else that I would need to purchase for a effortless install. Thank you!
jmotts
Q: Does it fit right on or did you have to buy the other piece that comes off the header
1 year 9 months ago
im having trouble fitting mine on so im wondering if im going to have to buy the other piece that goes all the way to the header or is there some way to use what i have and dont have to buy the other piece thanks if someone can give me a little info so i can put this bad boy on looks nice cant wait to fill the performace
Honda123Lover
Q: Will this fit on my 2012 crf 250r?
1 year 12 months ago
will this exhaust fit to my stock header? and is so can somone leave a link on how to do it! Thanks
MotoSportExpert
Expert MotoSport Staff
1 year 12 months ago
A: Yes the FMF Powercore 4 HEX Slip-On Exhaust Can be used with FMF or Stock OEM Header. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct exhaust for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
1 - 10 of 19
Fitment
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# Part Numbers
Product Variant Manufacturer Part #
FMF Powercore 4 HEX Slip-On Exhaust N/A
FMF Powercore 4 HEX Slip-On Exhaust 041567
FMF Powercore 4 HEX Slip-On Exhaust 041569
FMF Powercore 4 HEX Slip-On Exhaust 042340
FMF Powercore 4 HEX Slip-On Exhaust 043362
FMF Powercore 4 HEX Slip-On Exhaust 044441
FMF Powercore 4 HEX Slip-On Exhaust 043342
FMF Powercore 4 HEX Slip-On Exhaust 041489
FMF Powercore 4 HEX Slip-On Exhaust 041487
FMF Powercore 4 HEX Slip-On Exhaust 041488
FMF Powercore 4 HEX Slip-On Exhaust 043333
FMF Powercore 4 HEX Slip-On Exhaust 043334
FMF Powercore 4 HEX Slip-On Exhaust 044395
FMF Powercore 4 HEX Slip-On Exhaust 044396
FMF Powercore 4 HEX Slip-On Exhaust 044397
FMF Powercore 4 HEX Slip-On Exhaust 045553
FMF Powercore 4 HEX Slip-On Exhaust 044423
FMF Powercore 4 HEX Slip-On Exhaust 043335
FMF Powercore 4 HEX Slip-On Exhaust 044404
FMF Powercore 4 HEX Slip-On Exhaust 041514
FMF Powercore 4 HEX Slip-On Exhaust 045589
FMF Powercore 4 HEX Slip-On Exhaust 042308
FMF Powercore 4 HEX Slip-On Exhaust 042309
FMF Powercore 4 HEX Slip-On Exhaust 042310
FMF Powercore 4 HEX Slip-On Exhaust 042327
FMF Powercore 4 HEX Slip-On Exhaust 044434
FMF Powercore 4 HEX Slip-On Exhaust 045562
FMF Powercore 4 HEX Slip-On Exhaust 42345
FMF Powercore 4 HEX Slip-On Exhaust 43360
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.