FMF Powercore 4 Slip-On Exhaust - 4-Stroke

FMF Powercore 4 Slip-On Exhaust - 4-Stroke
FMF Powercore 4 Slip-On Exhaust - 4-Stroke

$173.77 - $296.99
15% Off - Save up to $53.00

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Item #FMF001B

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74 Reviews
4.9 out of 5 stars
5 Star   85 4 Star   10 3 Star   0 2 Star   0 1 Star   0
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All Reviews
Reninmoto
Morrisdale pa 16858
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
This fmf exhaust pipe is so loud itsounds likeacar

This exhaust is that is a fmf exhaust it has a very deep aggressive nice aggressive tone and it sounds like a car without a muffler speeding down a highway road and it had me introuble about the loud complaints that people had the police on me so very loud exhaust wouldn't recommend getting it if you don't won't to get introuble bye the police how loud it is

Kristian
McLeansboro, IL 62859, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Easy Install / Durable

10 minute install, no re-jet, have about 20 hours on it, not a scratch.

Wolfey Top 1000 Contributor
Pennsylvania, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
This thing is awesome!

I put this on my 2005 kx250f. It made it sound so much better especially with the powerbomb header. It gave the bike a little more power. Looks a little better too.

FMF Powercore 4 Slip-On Exhaust - 4-Stroke
Proudowner
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Very impressed

The noticeable change in power on my dr 650 when I added this was phenomenal I am super pleased and will recommend this to anyone

Neight
Southern, Maaine
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome

I installed this exhaust and saw immediate power and response improvements on the first ride. It also sounds great, good old four stroke thumper without being to loud. It was very easy to install, maybe 45 minutes with taking the old one off too. The fit and quality are perfect. I would recommend this exhaust to anyone who wants a quick and easy power improvement. Thanks FMF Power Team.

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

Very satisfied..Fast shipping as well.

motojay
Pennsylvania, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 4/5
AMAZING

I love this exsaust,i put it on my raptor 250 and it sounds and feels amazing when i ride it. i told my best friend to get this for his trx250ex and he thought the same thing.we both love the deep throaty sound,we drag race to see whose improved the most in speed,takeoff,power, and sound. overall it was a tie but i would definitely recommend this for anyone,its cheap for a really good price

Bige78 Verified Purchaser
Weirton, WV
Durability 5/5 Ease of Installation 5/5 Performance 4/5 Power 5/5 Style 5/5
Great Pipe

Great noticeable power, easy install.
Disappointing sound for a race Pipe.

Kyle
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 4/5 Style 5/5

Super easy installation on my 14 trx 400 sounds amazing love this pipe

Shane Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Awesome

I got this on recommendation from a friend who got the same one last year for his track bike. Mine is a WR250F install was a breeze and it sounds great always love FMF.

Brad MotoSport Staff Expert
Portland, OR, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Just what I needed

This exhaust really woke up my bike. paired it with the powerbomb headed and the difference is night and day.

ROBBIE Verified Purchaser
Yelm, WA, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
The best aftermarket pipe out there

I can not say enough good things about this pipe. It have me more power way better sound. Very easy to install and is totally awesome.

Homes Top 1000 Contributor
Chandler, AZ, USA
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 4/5
Great Value

This product was as advertised. Easy install, looks and sounds great. Noticeable power increase. Fast delivery. I recommend it!

Liana
New Jersey, USA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Powercore 4 on klx250s

This pipe is great! It made such a big difference in sound and power compared to the stock pipe on my klx250s. I love it.

PatDel Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 3/5 Style 5/5
Powercore 4 on a kfx 450r

This pipe was simple to install, looks good and has a nice sound to it. It's not too loud and it gives a good look to the bike. I didn't notice much of a difference in power between the stock muffler though, but it is just a slip on. Would recommend to someone who wants a pipe that looks good and that is NOT too loud and at a decent price

FMF Powercore 4 Slip-On Exhaust - 4-Stroke
Rick Verified Purchaser
Louisiana, USA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Awesome performance and sound!

Bought this slipon for my daughters canam ds 90. The sound and performance exceeded my expectations on such a small atv. My daughter smiles from ear to ear every time she rides! Would definitely recommend this exhaust.

Voorhees Top 1000 Contributor Verified Purchaser
Durability 4/5 Ease of Installation 5/5 Performance 4/5 Power 4/5 Style 4/5
Louder is safer

Installed on a 2015 xt250 with k&n air and dynojet programmer. Louder than stock but not annoying. 10 min install. With all 3 items I can go 10mph faster with more responsive throttle. Arrived early. Gotta love MotoSport.

Davis18 Verified Purchaser
Augusta, GA, USA
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 4/5 Style 4/5
FMF Powercore 4 Slip-On Exhaust - 4-Stroke

Sounds great not to loud very easy to install on 150R

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

Nice , easy slip on pipe

jjameson68
Austin, TX, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
For my '08 yz250f

Love this pipe! I folded my stock one in half on a crash and this one ads all the power I need. Coming out of corners is much smoother and keeping those high RPMs in whoops are great with this slip on. Easily ads a few noticeable HP. Took all of 2 minutes to install.

See 20 More Reviews
168 Questions
Answered:   162
Not Yet:   6
mike
Q: Do i need to rejet my carb after install of the silencer? i have a 2000 scrambler 500?
2 months 7 days ago
MotoSportExpert
Expert MotoSport Staff
2 months 3 days ago
A: There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership’s service department to have your bike properly jetted.
Due to the variations that may come into effect when tuning an engine (i.e. pipes, intake, altitude, cams, displacement, standard or high compression pistons, etc.) we CANNOT offer jetting recommendations.
jcerox
Q: Is the Spark Arrestor USFS certified?
4 months 19 days ago
AustinDRZ125
Q: If i have a 2003 drz 125, will i have to rejet the carb to have this exhaust?
4 months 23 days ago
DirtRider318
4 months 12 days ago
A: AustinDRZ125, yes, you will need to re-jet the carb. I would also recommend opening up your air box. Good luck!
Mike
Q: Where can i get a silencer?
4 months 24 days ago
nick
Location: New York, NY, USA
Q: The spark arrestor?
4 months 28 days ago
Is the screen already built into it or is it in the box somewhere because if its in the box my powercore 4 did not come with the spark arrestor
Justin
Location: America
Q: Will it fit onto 2006 crf150f and do I need to rejet the carb?
Over 5 months ago
Boob
Q: Do I have to re jet the carb or anything else?
Over 5 months ago
trich
Location: Maryland
Q: Will this fit fine on my 2007 crf150r? do i need extra mounts or screws?
Over 5 months ago
MotoSportExpert
MotoSport Staff Expert
Over 5 months ago
A: Yes. 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 muffler for your bike. Uses stock hardware. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
52000btuss
Location: Kentucky
Q: Header for power core 4?
Over 5 months ago
Wanting to know if the slip on exhaust works with the fmf power bomb header or do I have to get a different fmf brand
Wolfey
Top 1000 Contributor
2 months 1 day ago Location: Pennsylvania, USA
A: Yes I have the powerbomb header with my Powercore 4.
Rider1211
Q: Will This fit my bike?
Over 6 months ago
I have a 2006 crf150f and since this is a slip on exhaust not s full exhaust system does it connect to the original exhaust pipe or do I have to get a whole new system? My question may sound confusing or maybe stupid but it's a serious question and if someone could answer that would be great
1-10 of 168
Fitment
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# Part Numbers
Product Variant Manufacturer Part #
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044377
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041269
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041025
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045241
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045233
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045183
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041048
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041284
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041273
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041274
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041377
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041004
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041036
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041276
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041346
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043006
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043012
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043010
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042148
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042158
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042161
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042246
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042247
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042000
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043011
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045135
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045134
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045011
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045226
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042122
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042123
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043210
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045271
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045033
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044263
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044101
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044243
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044016
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044022
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043140
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043136
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043220
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045133
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041327
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044015
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044215
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044436
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041020
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041021
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041022
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041023
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041425
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044313
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044300
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044224
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044013
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044228
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044014
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044220
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044222
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 040005
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041032
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041244
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043024
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044021
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045010
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044141
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044312
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 041364
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042318
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042319
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 043284
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044110
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045266
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 045430
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