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FMF Powercore 4 Complete Exhaust With Stainless Hi-Flo Header - Race
FMF Powercore 4 Complete Exhaust With Stainless Hi-Flo Header - Race

$197.99 - $224.99
10% Off - Save up to $25.00

Item #FMF001E

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47 Reviews
4.8 out of 5 stars
5 Star   38 4 Star   8 3 Star   0 2 Star   1 1 Star   0
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All Reviews
Mankato MN
So awesome

If I buy this FMF Powercore 4 will I need a new heat blocker so it can fit

Verified Purchaser
AL
Good quality

Got this for my 01 xr100 and put it on myself. I do notice some lag when just revving it (like hesitation) and I was advised it may need carb tuning after installation. I have yet to get that done. But, going up a steep hill in first or second or popping a wheely my XR has more power than with the stock exhaust and sounds louder and better. Overall, I'm pleased with my purchase and would recommend this exhaust

New Port Richey fl
2016 Yamaha ttr125l

Just ordered it my first time on this website and absolutely love what Motosport has and for great prices !! I wanted the fmf factory 4.1 but wasn’t in stock all I need now is a few motosport decals and a muffler plug !! and will be
ready to ride again thankyou Motosport you’ll be gettin lots of business coming your way !!! Thanks again motosport!

Verified Purchaser
Key West ,Fl
All around great

I got this awesome pipe awhile ago. It sounds beast as **** and I noticed a big difference in mid range power and topend as well. And let me add this is my 9yo sons bike and it’s a blast now thanks MOTO sport all around great product.

Verified Purchaser
Elyria, OH 44035, USA
Best pipe ever

I got my powercore 4 from motorsport in perfect condition...on time too....very pleased with the pipe added lots of power to my crf100...especially on the bottom

Verified Purchaser
mn
Great Exhaust!

Sounds Great and easy to install!

Verified Purchaser
Houck, AZ
Ttr 125

I bought this like a month ago and I can feel the power. I do trail riding and I can notice the power

Dayton, OH, USA
Sounds minty

I bought this pipe for my crf100 and knew it would sound great. About a week and a half after ordering it,levers and a plug it was at my doorstep
This pipe sounds very throaty and almost annoyingly loud sometimes but it never gets old.

Verified Purchaser
FMF Powercore 4 Exhaust

This was a great buy. It woke up the bike and made it more fun it to ride. Looks great and well worth the money. Easy to install. Installed it with my son and it took about 30 minutes with me walking him through it.

Verified Purchaser

See 10 More Reviews
87 Questions
Answered:   82
Not Yet:   5
Bomoao
Q: I have an 2003 Honda XR100, will this fit my son’s bike? 
3 months 5 days ago
JamesGearhead
Top 10
3 months 5 days ago
A: This will fit your son's XR 100. Be sure to have the correct bike profiled into the site, so you can make sure you are getting the right part.
Lason
Q: How does this compare to the fmf factory 4.1 complete exhaust?
Over 9 months ago
David
Top 10 Contributor
Over 9 months ago
A: Factory 4.1 will be louder and have better gains throughout but primary at the bottom end.
Mikey
Q: Will this fit on a 2006 Honda crf100f?
Over 9 months ago
David
Top 10 Contributor
Over 9 months ago
A: Yes it will fit your 2006 Honda CRF100F
TTRBOY125L
Q: Would I have to rejet the carb I live in south jersey on sea level
Over 11 months ago
I have a 2017 ttr 125 L
rknight
Top 25
Over 11 months ago
A: Yes, With any full exhaust re jetting the carb is required.
Greg
Q: I have a 2004 yamaha ttr 125 and a powercore 4 with no spark arrestor. Is the a spark arrestor insert for this
1 year 7 months ago
Matt
Q: I'm looking at one of these for my 2015 yahmaha ttr125 l and I was wondering if it would mess up anything if I didn't rejet the carb
1 year 8 months ago
Tyler
Q: If i already have this pipe on the bike then i rejet it will it change the sound or rev limiter in any way? need to know?
1 year 8 months ago
i have a 2015 ttr 125le
Tyler
Q: If i already have this pipe on the bike then i rejet it will it change the sound or rev limiter in any way? need to know?
1 year 8 months ago
i have a ttr 125.
jojo
Q: Bought fmf pipe for 2013 honda 80,is it an easy bolt on?
1 year 9 months ago
Gauth
Q: Jetting
1 year 10 months ago
I purchased this product, and I would like to know what I should jet my bike to. It's a stock carb on a 2008 yamaha ttr125.
MotoSportExpert
Expert MotoSport Staff
1 year 10 months 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.
1 - 10 of 87
Fitment
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# Part Numbers
Product Variant Manufacturer Part #
Aluminum 042002
Aluminum 044136
Aluminum 041014
Aluminum 041016
Aluminum 040083
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.