FMF Powercore Silencer

FMF Powercore Silencer
FMF Powercore Silencer

$116.99 $129.99
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Description See Also: 3 Reviews 8 Questions Fitment
Item #FMF00EN

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3 Reviews
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maddog Verified Purchaser
Flagstaff, AZ, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Power 5/5 Style 2/5
1988 cr500

Hey everything works great! I matched it with fmf gnarly gold series pipe and felt 20% or more power. I did change out the original pipe and can from1988, so I was expecting good power gains. The price should be about $80 bucks tho.

Freeknet2000 Verified Purchaser
WA
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Power 5/5 Style 5/5
Factory performance!

Put one of these on my 87 CR500 after the original internal baffle tube had broken off at the base of the can insert due to old age and neglect from previous owners. I restored it frame up some time ago, and now race open class on it, so rest assured I rode it hard before and continue to ride it hard weekly after this silencer replacement, and by that experience I believe I have a good basis for an informed comparison of the Powercore to the Procircuit factory works. Since there wasn't a lot of info on this pipe but it seemed to be one of the only options, I took my chances and bought one. So happy I did, sooner would have been better!

Keep in mind I am using the procircuit factory works expansion chamber, not the fmf gnarly pipe. This is just the silencer being replaced so there aren't any huge performance nets, just my observations on the subtle but discernible differences between the factory and fmf silencer, as an experienced rider with some time to kill.

It really gave the bike an extremely aggressive tone, even more so than the original factory works exhaust did at a couple db less, and the backpressure is just right, stock jetting tables do apply, but it likes about 1/8t more air to reach peak hp. My butt dyno wants to give it something like a 1.5hp increase across the board it flows so well. Spools slightly faster to peak and breathes better under sustained WOT conditions.

I attached a cobra sparky to the end of it to meet trail regulations, which was a bit tricky. The endcap appears to be pressed in but not welded in place, and there is a structural rail protruding along the top of the can about 3/8 tall which has to be ground off, but it cuts easily and came out well with minimal damage to the pipe after drilling and riveting the sparky around the outside edge of the tip insert to preserve the seal in the endcap. Pull through rubber computer case fan mounts will fill the holes nicely when sparky is removed for track riding.

I guess my only complaints, and the reason I gave 2/5 for ease of installation, (which are really just me being picky but still very satisfied) are these:

1. Extend depth of extruded end cap by 1/2 inch to facilitate rivet mounting of spark arrestors while maintaining edge strength and seal integrity.
2. Taper the structural rail on the top of the can down to flat, and give us an inch of flush for our add on spark arrestor if we don't want an integrated unit or can't get one for a particular machine. The deeper end cap will compensate.

You know we are mounting spark arrestors on these, and we know it's not your fault as the retailer for the design flaw, so I am not bashing motosport, they had it for cheapest and at my door as fast as it gets with some free stickers as well.

Lastly,

Opens easily and repacks in under 10 minutes. Great product, recommended for both restoration jobs and people who are extremely picky about performance.

FMF Powercore undergoes testing in the rain and mud
cricket
augusta ga
Excellent purchase

looking for the best and sound quality this is it,would be even better for show if it was chrome...

8 Questions
Answered:   7
Not Yet:   1
BigBob
Location: Winnsboro, TX 75494, USA
Q: Does this sliencer fit a 1985 Honda ATC 250r?
3 months ago
Paul
Q: Does this silencer come with the mid pipe? If I buy the fmf fatty pipe with this silencer will it bolt right on and function as it should fitment wise?
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 ATV before ordering so we can be sure to send you the correct silencer 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.
maddog
3 months 17 days ago Location: Flagstaff, AZ, USA
A: No mid pipe. Slides over the expansion chamber. I did use high temp liquid gasket maker for the connection point to ensure no leeks.
dantherm250man
Location: Rochester, NY, USA
Q: Does this pipe come with the mounting gromets?
Over 11 months ago
MotoSportExpert
Expert MotoSport Staff
Over 11 months ago
A: No it would not include the rubber connecting seal. That can be found in our OEM section here:
http://www.motosport.com/dirtbike/oem-parts/suzuki/1995/rm250/muffler
maddog
3 months 17 days ago Location: Flagstaff, AZ, USA
A: No, I had to use the old one
Jason
Location: Brisbane australia
Q: Will this fit onto the pro circuit works pipe?
1 year 4 months ago
MotoSportExpert
MotoSport Staff Expert
1 year 4 months ago
A: You shouldn't have any problem running the FMF Powercore Silencer with a PC pipe on your 2001 Kawasaki KX500.
gooden5150
Q: Would you recommend a powercore or the powercore2 for an 85 lt250r?
2 years ago
MotoSportExpert
MotoSport Staff Expert
2 years ago
A: FMF offers only the Powercore Silencer for your 1985 Suzuki LT250R.
Freeknet2000
1 year 11 months ago Location: WA
A: I can't find a Powercore 2 available for that year, most of the older 2 strokes are going to use the Powercore.
kidwalsh
Q: Does it have a spark arester?
Over 7 years ago
racer3114
Expert MotoSport Staff
Over 7 years ago Location: PDX
A: The powercore does not have a spark arrestor... If you are looking for a FMF spark arrestor for a 2-stroke you would want to look for a Turbinecore Silencer
Freeknet2000
1 year 11 months ago Location: WA
A: No, you will need a cobra sparky or similar to meet trail riding requirements at state OHV/ORV parks.
maddog
3 months 17 days ago Location: Flagstaff, AZ, USA
A: I looked in the end and did not see one. However its a long pipe and sparks might not make it through that much Can.
kfx400racer
Location: Arkansas
Q: What is the diference in this and the powercore 2?
Over 8 years ago
bountybob
Top 10 Contributor
Over 8 years ago Location: Tualatin
A: The Powercore 2 is the newer updated version, so it has more to do with what type of bike or ATV you have as to what one you would get, say if you had a 1992 RM125 you could only get the Powercore as if you had a 96 you would get the Powercore2
Freeknet2000
1 year 11 months ago Location: WA
A: Powercore is flat tip, Powercore 2 has a cap. Some slight baffling changes as well. One or the other will fit your bike depending on year mostly, but probably not both.
maddog
3 months 17 days ago Location: Flagstaff, AZ, USA
A: I'm thinking price. I never installed just a rear can and felt much gains. Mostly tone.
mattyp
Q: What is the product number for this part?
Over 8 years ago
I called FMF and they gave me the number 9-07 but im not sure if it was for the fatty exhaust or the silencer.
james718
MotoSport Staff Expert
Over 8 years ago
A: All FMF part numbers varying depending on the bikes make, model and year, I will recommend you to phone us. Just inform the Sales Agent which bike you are putting this on. Just so you know, we sell parts only by application. Meaning if you put in your "Ride", the website will only sell you what fits your "Ride".
Freeknet2000
1 year 11 months ago Location: WA
A: Not enough info.

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