FMF Powercore 4 Slip-On Exhaust - 4-Stroke

$199.99 - $349.99
$179.99 - $314.99
4.90 out of 5 stars
Fitment Expert:
Dirt Bike Dirt Bike ATV Utility ATV UTV Make Year Model
 
FMF Powercore 4 Slip-On Exhaust - 4-Stroke
FMF Powercore 4 Slip-On Exhaust - 4-Stroke
  • Description
  • Reviews (66)
  • Q&A (127)
  • Fitment

When designing the PowerCore 4, FMF looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

  • Overall increase in power and torque.
  • Durable stainless steel and aluminum construction.
  • Space Age internal packing material for maximum longevity.
  • Hi-Flo modular end cap.
  • Internal shape of core uses Hi-Flo technology.
  • Enhanced sonic evacuation provides for higher flow and increased power.
  • Includes removable (most models) spark arrestor.
  • Optional 96dB quiet insert available (sold separately).
4.9 out of 5 stars (66)
4.9 out of 5 stars
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Overall 5 out of 5 stars
Durability
Ease of Installation
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Style
Verified Purchaser
Location: Murphysboro, IL 62966, USA
Kells
Amazing Product

This slip on is awesome. Gave quite a bit more horsepower and torque in the higher rpms. Durable as well. I love it. When installing it, it didn't exactly "slip-on" but it went on pretty easy. Just had to wiggle it to get it to slide on. I got it because I was wanting to get something aftermarket like the exhaust, plus I was tired of looking at my ridiculously long stock exhaust. Glad I got it!

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: Fuquay Varina, NC, USA
GTLeveLX
Sound

This dirt bike exhaust is just throaty as it can get and it comes with a installed spark arrestor so you can hit the trails with it, i have noticed some really big differences, it seems more responsive like it has the power to do anything, with that stock exhaust the crf has sounds like a baby with this monster on it its like a monster. its not to expensive either so it wont break your budget and its definitely worth the money too.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Ohio
Shep450
Suz 450

Awesome exhaust!! Easy to install and sounds great!!

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Perry, KS 66073, USA
russ
More power to ya

made my 2008 wr250f sound and run like a dirt bike should had to change the main jet up to a 172 and a couple other small things but it runs a lot better than it did before.

Overall 5 out of 5 stars
Durability
Ease of Installation
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Power
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Verified Purchaser
Location: PA
Rider336
Nice

Looks and sounds great.

Overall 5 out of 5 stars
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Ease of Installation
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Power
Style
Location: Hilton New York
Capizzi3
FMF Powercore 4

This pipe is the best pipe FMF offers at a price that wont break your bank! Taking off the original stock pipe and putting this pipe on, I felt a HUGE improvement in response and in power/torque on the back end. I havent been able to go full speed with it on yet but It feels like my bike is going faster with it on, I'd say it increases around 5 mph faster. This pipe also has amazing sound, it makes the bike sound tougher and louder! If your stuck between two pipes dont stress and choose this one you wont regret it trust me!

Powercore 4 On My 2008 Honda CRF150F
Overall 5 out of 5 stars
Durability
Ease of Installation
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Power
Style
OCMoto
Great Spark Arrestor Exhaust

This pipe bolted right on, perfect fit and has given my bike much better performance.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Hilton, NY 14468, USA
Capizzi3
Power Core 4

I ordered a Power Core 4 for my Honda CRF150F. I got it 5 days ago and it said it would take 4 days max to show up. It also keeps saying its in inventory but said in stock when I ordered. Other then this issue Its an EXCELLENT buy and product. I definitely recommend this for a dirt bike or atv cause it works for both and it doesn't destroy your wallet. Im really excited waiting to put this on my bike.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Kansas City, MO, USA
Jackson

15 minute install sounds amazing love it and it showed up in two days

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Johnny
Trust me its worth it

I bought this muffler for my crf250x and compared to the stock exhaust it is a significant improvement in power, plus it sounds amazing.

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Total Questions (127)
Questions with answers:
  127
Questions without answers:
0
hotshotnicol1
Huntergregory Location: Flinton,pa
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Danny 21 days ago Location: Marlton, Evesham Township, NJ, USA
Will this fit my 2003 honda trx250ex?
MotoSport Staff Expert
21 days ago
MotoSportExpert
Yes it will fit your 2003 Honda TRX250EX. Just be sure to correctly select the Year/Make/Model of your ATV before ordering so we can be sure to send you the correct exhaust for your ATV. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Oski 1 month 1 day ago Location: Arizona
Will this fit my 2002 ttr 125? if not which one will?
Expert MotoSport Staff
9 days 23 hours ago
MotoSportExpert
The FMF Powercore 4 Complete Exhaust for your 2002 Yamaha TTR125 can be found here: http://www.motosport.com/fmf-powercore-4-complete-exhaust-with-stainless-hiflo-header-race
hotshotnicol1 1 month 1 day ago
Is this USFS Approved?
I was wondering if this is USFS approved for the 02 crf450r Model I ordered one and I see the spark arrester screen in it but I don't see any USFS approved stamp on it like my old fml muffler I'm replacing. Am I missing where it's stamped. So will this pass or not and why? Is there a fix to make it pass? If not are there any mufflers that are cause I do most of my riding at state parks in CA and need one that I can use there. Thanks
MotoSport Staff Expert
11 days ago
MotoSportExpert
Yes the FMF Powercore 4 Slip-On Exhaust has a removable USFS approved spark arrestor screen.
Huntergregory 1 month 3 days ago Location: Flinton,pa
Will this fit my 2003 susuki drz 125 4stroke?
Expert MotoSport Staff
1 month 3 days ago
MotoSportExpert
Yes the FMF Powercore 4 Slip-On Exhaust will fit your 2003 Suzuki DRZ125. 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.
wr250f 1 month 4 days ago Location: Montana, USA
I have a wr250f is this the best slipe on to gain more torque.ido alot of trail riding?
MotoSport Staff Expert
1 month 3 days ago
MotoSportExpert
The FMF Powercore 4 Slip-On Exhaust would be a good choice for your WR250F, with an Overall increase in power and torque.
TylerB 1 month 9 days ago
Do you have to take the headers off to install this exaust?
MotoSport Staff Expert
1 month 9 days ago
MotoSportExpert
No You should not need to remove the header to install this FMF Powercore 4 Slip-On Exhaust on your 2008 Honda CRF150F.
TaylorP 1 month 13 days ago
Will this fit my 2012 trx250x?
Expert MotoSport Staff
1 month 11 days ago
MotoSportExpert
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 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.
Yzrider 2 months ago Location: Las Vegas, NV, USA
Does it work with the FMF powerbomb?
16 days ago Location: Murphysboro, IL 62966, USA
Kells
Yes. As a matter of fact, FMF exhaust headers are usually recommended to be paired with FMF slip-ons. You should be fine.
MotoSport Staff Expert
13 days ago
MotoSportExpert
Yes the FMF headers, whether it be the PowerBomb or the MegaBomb, are fitted to match an FMF series muffler. FMF does not recommend or guarantee you try to match it to a stock muffler..
Hondarider321 2 months 8 days ago Location: Illinois, USA
Do I need to buy a new header to fit my 2003 crf150f?
MotoSport Staff Expert
2 months 8 days ago
MotoSportExpert
No, the The FMF silencer products will fit the OEM stock header or FMF 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.
Trx250EX199 2 months 21 days ago Location: Mass
Well I have to make any adjustments to my carburetor before installing this pipe?
MotoSport Staff Expert
2 months 21 days ago
MotoSportExpert
Normally when installing a slip-on only minor jetting changes are needed, if any at all. If your bike is currently jetted properly you will likely not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the bike to see how it is running then tuning your carburetor from there if necessary.
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