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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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148 Reviews
4.8 out of 5 stars
5 Star   130 4 Star   16 3 Star   0 2 Star   1 1 Star   1
All Reviews
Smitty77honda Verified Purchaser
2 months 3 days ago Northeastern Vt
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Excellent fitment

Quick and accurate,fmf fit great and lives up to noise and power. Our crf 150 was already jetted and the pipe completed the assembly,15 ur old loves it, neighbors at 7 am may differ in opinion!!! Got a good bark!

Titus Verified Purchaser
3 months 6 days ago
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Great company, great part!

easy install, great shipping time, great price. Fit my 2017 KLX 140L great. Has a great sound now.

DirtbikeKyle Verified Purchaser
3 months 7 days ago Naples FL
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Great exhaust!

First brand new exhaust I have ever bought! I have a Yoshi on my RMZ450 and I got this for my girlfriends CRF150R! It sounds great and it was Super easy to install! Definitely gave it alittle more power! I’d say it’s money well spent!

xxSHERPAxx Verified Purchaser
3 months 7 days ago Detroit MI
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Voice of an Angle

Great sound, great performance, great buy !!!

Motodad Verified Purchaser
3 months 19 days ago CA
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Fits perfectly. Sounds great

Just installed this. Have only tried it out up and down the street, but sounds great and definitely feels stronger and cleaner than stock.

Jglover Top 500
4 months 10 days ago Delta utah
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Replaced old

Replaced old one sounds great!!!

Ramy
4 months 14 days ago Chula Vista
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
FMF YFZ450 2004

Nice look and sounds great also really easy to install.
Super fast shipping i bought it on a Wednesday and by Friday i was already here.

brandonatrz
4 months 29 days ago The Colony, TX
Durability5/5Ease of Installation5/5Performance5/5Power4/5Style5/5
Easy install, sounds great!

Recently bought a 2016 yz450fx, and the stock exhaust had been dented and was rattling a bit. Really annoying. Ordered this, showed up 3 days later and was a piece of cake to install. The only thing off was the stock exhaust clamp on my bike was too big, so I grabbed a high heat hose clamp from home depot to use. Great by, looks sexy, and sounds great. I'm not fast enough to notice the power increase much.

JitterXYY Top 500 Verified Purchaser
Over 5 months ago Landisville, PA
Durability5/5Ease of Installation5/5Performance5/5Power5/5Style5/5
Improved Sound and Flow

I purchased this 5 years ago and haven't had any issues, removed the insert by taking the screw out for maximum ignorance (SOUND). Quick tip when installing unless I'm blind, but their is a cover inside or outside that faces the header, and I tried installing the Powercore 4 Pipe without realizing that it needs to be removed in order for the Pipe to fit over the header. Great Pipe, made to last, and a fantastic weld down the middle. All in all I'm very pleased with this purchase and Motosport has yet again come through with the excellent pricing!

SurfJiujitsu1 Verified Purchaser
Over 5 months ago OAHU HAWAII
Durability5/5Ease of Installation5/5Performance5/5Style5/5
Awesome Product

Bought this to give my sons klx 140g a lower “THUMP”,, FMF never disappoints.. And Thank you Motosport for the prompt delivery all the way out here on Oahu Hawaii...

See 10 More Reviews
272 Questions
Answered:   259
Not Yet:   13
t rock 147
Q: Will this fit stock head on 2007 yz250f
3 months 15 days ago
Chowe
Top 25
3 months 15 days ago
A: Yes these are designed to fit the stock header, please profile your bike to get the correct fitment. If you have any questions give us a call at 1-888-676-8853.
Joeseph
Q: Will this exhaust fit a fmf power bomb stainless steel header for a yzf250
3 months 19 days ago
Chowe
Top 25
3 months 19 days ago
A: Yes this slip on is intended to fit the OEM stock headed or is compatible fitting the fmf powerbomb or megabomb. If you have any questions give us a call at 1-888-676-8853
vincent22
Q: I have a2018 KLX 140L and I was wondering if it needs a tune if I put this exhaust on. I'm not big on bikes so don't know much. Can I just bolt it on and go?
4 months 6 days ago
Dirtbike123
Q: Will this make a Suzuki drz125l faster and louder
4 months 12 days ago
Trevor Gearhead
Top 10
4 months 12 days ago
A: Providing your DRZ is between 03' and 19', yes.
Damo0218
Q: Does this silencer come with the hardware such as the bolts and things to make it fit and work?
4 months 14 days ago
Chowe
Top 25
4 months 14 days ago
A: Yes this pipe will come with all required mounting hardware to fit on your bike. Please profile your vehicle before purchasing to get the correct slip on sent out.
John
Q: Will this fit on my 2019 KLX 250?
4 months 15 days ago
Trevor Gearhead
Top 10
4 months 15 days ago
A: Yes. Enter the year, make and model of your machine into our website to ensure proper fitment.
Grizzlybear513
Q: Will this fit my 2019 Yamaha raptor 700r?
4 months 27 days ago
Isaac
Top 10
4 months 27 days ago
A: We offer the FMF Powercore 4 HEX Slip-On Exhaust for your model.
mattyshaff
Q: What quiet insert fits this muffler?
4 months 29 days ago
Paul
Top 10
4 months 29 days ago
A: The FMF Powercore Quiet Core Insert fits the Powercore 4 muffler.
Alex B
Q: Will this exhaust make a ttr230 louder than the stock exhaust?
Over 5 months ago
Trevor Gearhead
Top 10
Over 5 months ago
A: Absolutely.
Estbom51
Q: Will it fit my Kawasaki klr 650 camo and do I need anything extra to get the best outcome out of this purchase??
Over 5 months ago
robert
Top 10
Over 5 months ago
A: This will fit a wide range of klr 650 models from 1987-2018, this will come with everything needed to install.
1 - 10 of 272
Fitment

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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
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
With Spark Arrestor 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 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 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 044448
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 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 043095
Without Spark Arrestor 042160
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.