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

$197.99 - $314.99
10% Off - Save up to $35.00

Select your bike to see if this exhaust fits
Item #FMF001B

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117 Reviews
4.8 out of 5 stars
5 Star   102 4 Star   14 3 Star   0 2 Star   0 1 Star   1
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All Reviews
Verified Purchaser
Fort Worth Texas.
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
FMF 4 stroke exhaust

It finally went on sale! Worth wait!

FMF slip on
Snohomish,WA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Loud but so worth it

Ive been using it for three weeks, instantly noticed the torque increase

Sterling,oh
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 4/5 Style 5/5
16 drz 400sm

Awsome pipe, looks really good. Made awesome power for bottom and mid range. For top end u atleast have a little bit more or stock. Great sound only disappointed in that u can’t use ur heat shield with this pipe.

Verified Purchaser
DFW TX
Durability 4/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Excellent product for XR250R

Very nice pipe that saves weight and increases low and mid-range power, when the bike is uncorked and jetted. The fit was perfect with no issues. Also sounds great!

Verified Purchaser
Oregon
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Power core 4 for xt 250

Easy installed, great performance. Half the weight of stock.

Verified Purchaser
Va
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Worth the money!

A small power increase and awesome sound.

Verified Purchaser
Blue Springs Missouri
Did NOT fit my 2018 XR 650L

Manufacturer did not spline the pipe to manifold deep enough so it wouldn't fit the factory bike bolt pattern !

Verified Purchaser
Texas
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Powercore 4 is great

I put this on a 2017 Yamaha TT-R230. Great fit. Great sound. The only complaint is switching between spark arrestor and quiet insert. Very difficult to remove either one, but it is worth it. Great product.

Lakewood,co
Durability 4/5 Ease of Installation 5/5 Performance 4/5 Power 4/5 Style 5/5
Slip on exhaust

I had no issues installing this unit, maybe 15 minutes.
It gave my 12 yr old a good bit more power and noise I need for the trails. .2017 klx140L
Fast delivery easy install

Deltona Florida
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 5/5
Best Performance decision!

I put this on my 2018 DRZ 125 and it literally probably goes 10mph faster! Very easy to put on your self, took me about 15 mins in total to remove my old stock pipe and to put on my new FMF pipe. I ABSOLUTELY LOVE THIS PIPE!!!

See 10 More Reviews
193 Questions
Answered:   185
Not Yet:   8
Kade33
Q: Will this work on my stock header for a 2006 raptor 350?
5 days 16 hours ago
TylerGearhead
5 days 16 hours ago
A: Yes, a slip on is almost always designed to work with your stock header.
David
Q: What is the difference between the fmf power core 4 slip on and the fmf factory 4.1 slip on
6 days 5 hours ago
JamesGearhead
Top 25
6 days 5 hours ago
A: The Powercore 4 is a great option for the every-day rider, looking to add power to their bike at an affordable cost. The Factory 4.1 was focused on MX performance. It is lighter a bit lighter and the color scheme is different also.
TH the rider
Q: Will this fit my 2003 honda 150F with stock header
6 days 11 hours ago
Thumbs
Top 10
6 days 11 hours ago
A: Yes this will fit your stock header on your 03 Honda 150f no problem.
Ekeller
Q: Will this  exhaust fit on a 2008 Honda trx400ex
11 days ago
Isaac
Top 10
11 days ago
A: Yes the exhaust is offered for your model.
Atvjunkie
Q: Would this work on a Polaris Sportsman 570?
21 days ago
Tyler Gearhead
Top 25
21 days ago
A: I will need the full Year, Make and Model of the vehicle your looking to install this on to answer that. If you Profile your vehicle on the website it will indicate if it is an exact fit or no fit.
Kohlton12
Q: How long is the exhaust slip on in inches?
26 days ago
Paul
Top 25
26 days ago
A: The FMF Powercore 4 Slip-On Exhausts are all model-specific, so the dimensions vary depending on which exact motorcycle you have. In most cases, the dimensions of the FMF Powercore 4 Slip-On are very close to the same as the original muffler from the bike manufacturer. All FMF Powercore 4 Slip-On mufflers will mount to the original installation points.
John
Q: Will this fit a 2018 XR650L?? ?????
1 month 1 day ago
Isaac
Top 10
1 month 1 day ago
A: Yes we do offer that exhaust for your model.
Zachmc14
Q: When will this item be back in stock?
3 months 11 days ago
kawi119
Top 250 Contributor
3 months 11 days ago
A: Available - Requires 6-9 Business Days to Ship from Our Warehouse
Chris
Q: Would this fit a Yamaha 450 yfz 2006?
3 months 18 days ago
robert
Top 10 Contributor
3 months 18 days ago
A: Yes it will fit the vehicle.
Tbone
Q: Will this slip onto a fmf power bomb header
4 months 2 days ago
1 - 10 of 193
Fitment
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
FMF Powercore 4 Slip-On Exhaust - 4-Stroke N/A
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 045233
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 042161
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 042246
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 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 044016
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044022
FMF Powercore 4 Slip-On Exhaust - 4-Stroke 044295
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 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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