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2003 Yamaha YZ125

FMF SST Pipe & Powercore 2 Silencer Combo

$333.00
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FITS: 2003 Yamaha YZ125 change
 
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Kit

Product Description

FMF SST Pipe:

The creation of the SST pipe was no accident. R&D invested countless hours to find a way to extend mid-range pull and over-rev. With the SST, the powerband becomes stronger throughout the mid-range with phenomenal peak horsepower thus making it a pipe that is ideal for a broad range of riding. The benefits brought together by the SST makes this pipe one of the most impressive bolt-on 2-stoke modifications that money can buy.

  • Makes for crisp response at the crack of the throttle.
  • Revamp your power band with impressive top-end extension.
  • Quality constructed for maximum durability.
  • FMF ensures an accurate fit every time with their Tru-Flo stamping in the building of the SST pipe.
  • Chrome-plated finish over carbon steel for maximum durability and aesthetics.
  • Supplied O-rings ensure a flawless fit.
  • Match the FMF SST pipe with the FMF Powercore 2 Silencer to get the best performance from your 2-stroke.
  • Note: May require use of high octane fuel.

Note: Pipe may include factory indentations for proper installation clearance.

FMF Powercore 2 Silencer:

  • FMF adds the Powercore 2 silencer to its arsenal of 2-stroke exhaust options because FMF is brand that knows how to maximize power for any terrain.
  • The sleeve of the Powercore 2 silencer is constructed from extruded aluminum to provide a lightweight design. FMF incorporated a tuned perforated core for exceptional performance.
  • FMF made sure the Powercore 2 silencer was also durable by using stainless steel on the performance flow end cap and the stinger.
  • FMF makes it easy to perform maintenance on the Powercore 2 silencer by using removable bolts to break it down.
  • Customer Reviews
  • Ask an Expert
  • Also Offered For
1-10 of 21
Overall
Verified Purchaser
Great product

Put this on my yz 125, very easy to install. Run better and I can feel the difference in power. This is a great product and I highly recommend it. The shipping wasn't that great though. The box was all torn up and took two weeks.

Overall
Top 1000 Contributor Verified Purchaser
Location: mt
Sooo sexy

makes my cr250 chime, and looks dern good.

titz
Overall
Verified Purchaser
Location: Mercersburg, PA
FMF exhaust combo

I havent really had a chance to really see what this new exhaust is capable of. I installed it along with a Trailtech lightweight flywheel on my 2006 KTM 300 XC-W and for the 5 minute ride i took the bike seemed much snappier and layed down rubber through the end of second gear.

Overall
Top 250 Contributor
Location: Oahu Hawaii
Simply the best

Perfect! wish they were impervious to damage on my second set!

Overall
Excellent

I have used this pipe on three of my bikes and the outcome is always the same. Really woke up my new yz250, a lot more pull up top.

Overall
Stock to This

This pipe does everything it claims to do. Huge increase in power and not to mention it looks extremely b/a. I have a walk around vid on youtube for the stock pipe and then after i put on this one

Overall
Durability
Ease of Installation
Performance
Power
Style
Location: Yadkinville, NC
Does what it says

excellent power increase across entire power band pipe looks very good on bike pipe bolted on easily silencer a bit tough to bolt on -most likely bent subframe though-recommend pipe and silencer combo for best results

Overall
Durability
Ease of Installation
Performance
Power
Style
Location: Brodhead, WI
Decent buy

The combo works great together and it gives you that little extra kick that stock doesnt give you. Its not a huge power boost but you can for sure tell out on the track. It pulls and pulls, sounds great, looks great, and holds up pretty well. It didnt take long at all to put on. The chrome header is awesome and stays shiny with a little WD40 every once in a while.

FMF SST Pipe & Powercore 2 Silencer Combo
Overall
Durability
Ease of Installation
Performance
Power
Style
Location: Hortense,GA.
Sounds good BUT

I think FMF did apoor job on sealing the pipe to the cilynder.We replace the O rings every other ride. I called FMF and they would not give me a solution to the problem.As a father keeping 85's going for the next day racing they could have been more helpful, other than o well keep tearing down and replacing.

Overall
Location: stillwater OK
Excellent!

this pipe combo helped out my 05kx125 alot it has better bottom mid and top so you can get on the power and it turns that 2 stroke crazy powerband into controld great useable power.... well worth the money going 2 have alot of good riding with this exaust

1-10 of 21
Total Questions (12)
Questions with answers:
  12
Questions without answers:
0
1-10 of 12
Toppee Over 7 months ago
Difference?
Is there difference between shorty and powercore 2? do i need change jets or something else in engine and does this pipe fit perfectly in my honda cr 125, 2001?
MotoSport Staff
Over 7 months ago Location: Portland, OR, USA
The difference between the Powercore 2 and the Shorty will be power output. The Powercore 2 will provide better top end power and the Shorty will increase bottom end power. The jetting will be dependent upon your location and elevation you ride at. Modifications to the jetting will also depend on what the bike is currently jetted at. You can contact FMF Racing directly and they can provide jetting specs for your location and modifications done to the bike. You can also purchase a jet kit that will have the jets required and a jetting guide to help you set it up correctly.
afin33 1 year ago
What combo would be best for hill climbing? (usually 3rd gear and up)?
Usually pretty high speed (3rd gear and above)
MotoSport Staff
1 year ago Location: Portland, OR, USA
There is many different things to consider when asking a question like this (such as gearing). The shorty silencer will give you much better bottom end from the engine but you will lose a little bit of top speed as it will fall flat a little quicker. The Powercore 2 will be more beneficial if you are typically in higher gears with wide open type riding.
yama491 Over 3 years ago
Will i need to re jet my bike?
I have a 2009 YZ250. Will i need to get a different jetting kit for it or is the way it is good for the SST combo? and should i go with the shorty or the powercore?
MotoSport Staff
Over 3 years ago Location: P+RTLAND
You should check your jetting after installing an exhaust system. Most likely you will have to rejet. If you do more tight track riding than trails go with the shorty, if you like to do a mixture of both go with the powercore.
Slingblade Over 4 years ago Location: Danbury, Texas
Which is the best end pipe for the sst pipe?
I ride a 2007 Honda Cr85 is the powercore 2 silencer or the powercore 2 shorty better with the sst pipe?
Expert MotoSport Staff
Over 4 years ago Location: USA
If most of your riding is at a track I'd recommend the shorty, but if you ride elsewhere go with the standard powercore2 silencer.
Over 4 years ago Location: ST ANTHONY
The shorty pipe is for bottom end and the normal power core is for topend. I ride the dunes and desert and fmf recommended the sst and the shorty.
RYDALCH Over 4 years ago Location: ST ANTHONY
GOT A 06 RM 250 WHATS THE BEST PIPE COMBO FOR DUNES AND DESERT, I RIDE WIDE OPEN?
MotoSport Staff Expert
Over 4 years ago Location: USA
You are looking at the best setup for riding wide open.
hammahead Over 4 years ago Location: mass
Combo for kx85. do i need to jet? also running fast track, which silencer is for me?
MotoSport Staff
Over 4 years ago Location: P+RTLAND
Yes, you will need a jet kit and your best bet would be running the standard silencer. It's a little more broad as far as power goes instead of focusing on the bottom end like the shorty does. Your call in the end, both will be about the same as far as performance goes.
cr85foxjrider Over 4 years ago
Will i need to jet before i put it on?
will i need to jet before i put it on or can i run it with the pipe and then jet it
MotoSport Staff
Over 4 years ago Location: Tualatin
Yes you usually need to re jet with a SST system but since I don't know what bike you are asking about I will give you the link... http://www.fmfracing.com/TechSupport/JettingCenter
pepper Over 4 years ago
Will a 2000 cr 125 pipe fit on a 1999?
Expert MotoSport Staff
Over 4 years ago Location: Portland, OR
No those 2 years are not compatible.
Jordy Over 4 years ago Location: Theriot
Jet kit?
should i jet the bike and if i have to what kind of jet kit should i put on it
MotoSport Staff Expert
Over 4 years ago Location: Portland, OR
You will have to rejet the bike with this pipe and silencer. Jets are jets as long as buy them for your specific carb.
Over 5 years ago
WILL THIS FIT THE 250SX 09?
DOES ANYONE KNOW IF THIS WILL FIT THE 09 SINCE IT FITS THE 08?
MotoSport Staff
Over 5 years ago Location: Portland, OR
The exhaust system on that 250sx didn't change in 09 so the 08 should fit.
Over 4 years ago
probaly not ktm changes mannnnny things everyyear including exaust
1-10 of 12

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