FMF Fatty Pipe & Powercore 2 Silencer Combo

FMF Fatty Pipe & Powercore 2 Silencer Combo
FMF Fatty Pipe & Powercore 2 Silencer Combo

$305.98 - $521.98
10% Off - Save up to $34.00

  • Description
  • 32 Reviews
  • 65 Questions
  • Fitment
Description Item #FMF00FL

FMF Fatty Pipe:

With well over 35 years of racing experience behind it, the Fatty pipe delivers race-proven performance. The Fatty broadens and smoothes out the power curve while boosting gains throughout the entire power band, more low-end, more mid, and increased over-rev. No matter what type of riding you do, the Fatty has the benefits you're looking for.

  • More tractable power, improved throttle control.
  • Provides power gains throughout entire power band.
  • Carbon steel with a nickel-plated finish for maximum durability.
  • FMF Racing's Tru-Flo stamping process ensures a perfect fit and optimum performance.
  • Can be used with FMF or stock silencer.
  • FMF's most popular 2-stroke pipe .

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.

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32 Reviews
4.6 out of 5 stars
5 Star   32 4 Star   1 3 Star   1 2 Star   2 1 Star   1
Verified Purchaser
San Diego, CA
You can't go wrong

FMF has been around for a long time, with that, The fatty pipe and shorty silencer is the prefect combo for my 2006 Rm250. Fit, finish, sound, and performance are awesome, exactly what I expected from the best in the business

FMF Fatty Pipe & Powercore 2 Silencer Combo
FMF Fatty Pipe & Powercore 2 Silencer Combo
Verified Purchaser
Fmf best

Sounds greats

Beaver pa

Adds good power! Bottom end is go with a good hit to mid range!

Verified Purchaser
South Carolina, USA
Rekluse FMF

The Rekluse performs as advertised. Great Product and Excellent Support from Rekluse. Maybe the best MFG support in the parts business. As always FMF products are excellent. I/my family have been in Dirt Bike Racing for 40 years and purchased from numerous suppliers. Motosport is absolutely the best vendor we have purchased from. Pricing, Shipping and Customer support is second to none. If you are not buying from Motorsport you have neglected a great asset.

Verified Purchaser
Sounds great...

But it doesn't deliver on performance. I bough this for my son's pw50 and it really does make it sound like a "real " dirtbike, but that's it.
I'm a honda/pro circuit guy, but on the PW50 there were no noticeable performance gains.
The OEM parts/equipment are designed to make the machines run at a standard rate. Be careful of buYing into the hype of aftermarket parts. While many do affect performance, many are gimmicks. This is a gimmicj.

Top 1000 Contributor Verified Purchaser
Cecil, PA

I'm an FMF guy. always liked the performance and sound of it. Just wish FMF could get there coating on better somehow. First time out riding and then wash, it started to get rust spots on the pipe. Overall still satisfied with it.

An awesome pipe and silencer

I naught this fory 01/cr 250 it makes the low end have more crack and makes the power band a little more intense. I love Motorsport over any dealer ship

Verified Purchaser
Best pipe and silencer ever

Just installed the new FMF "Fatty" pipe and silencer on my 04 YZ250 and it was a perfect fit. I can tell an immediate difference in the low end and mid as it rips.

This was a replacement for the Pro Circuit pipe that constantly cracked and had to be rewelded. Poor craftsmanship on PC's part

Top 1000 Contributor Verified Purchaser
Long Island, New York, USA
Wakes up the RM125

I added this combo to my sons 06 RM125. I also added a VForce3 reed system and it really wakes up the bike throughout the power band. His practice bike has the Works finish which can be a bit of work to keep looking good so I went with the platinum finish this time. FMF seems to hold up to rocks well without denting.

FMF Fatty Pipe & Powercore 2 Silencer Combo
Verified Purchaser
Cary, NC, USA
Adds good power with a longer lasting pipe

FMF always makes the best quality pipes in my opinion. I got this pipe a couple of years back for a yz250 and it runs great. With much stronger metal than the stock pipe. Always have bought from motosport, always will.

Verified Purchaser
Avoca, PA, USA

this is an amazing pipe and silencer instant power incease...and my power in the lower rpm range was the most noticeable....deff..will by again and again

Decent buy

it looks amazing on the bike havent got to use it yet, but was very very hard to install, i used WD40 still was super hard to install.

LOTS of rust inside the pipe.

I was very excited to get my pipe and silencer. But when I looked inside my pipe to see how it was and the conditions, I found LOTS of rust... It may not effect the bike, but it's something I would not like to see.

The pipe
Cataula, GA
Pucker Factor!

Most aftermarket exhausts I upgrade from stock doesn’t give you a noticeable feel of increased performance. However, the FMF pipe and silencer combo I chose took approx. 5 min to install. I then test rode my 2013 Yamaha YZ250 for a few min. WOW, what a difference! The stock exhaust raised the front wheel in first and second land sometimes in third. The FMF raised in all gears and increase the pucker factor. Oh yeah, lighter than stock.


Great product. Good deal. Really woke up my yz250 2stroke. It was shipped and on my bike in about a week.

Virginia Beach, VA
Fantastic quality, price and performance

I bought the Fatty/Shorty combo for my '05 YZ125. It fit perfectly, looks incredible and works perfectly. There is a difference in performance and the nickle finish is easy to maintain.

Verified Purchaser
Jackson, MI
Sweet product

This fit my '05 KX85 like a glove... sounds and power improvements were GREAT

1 Star

I've been told for years now how a pipe and silencer will REALLY increase the performance of my YZ. I've been holding off for quite a few years but decided that the wife and boys could buy the pipe and silencer for me for Father's Day. I found out (after burning $334) that the performance of my YZ can be enhanced with judicious application of fuel input via my right wrist. The combo did shorten the gap from 0 to the power band a little but not worth burning up $334. If I had to do it again, I'd forego the purchase and twist the throttle a little harder.

Definitely not worth the money in my opinion.

Phoenix, AZ
Good pipe for my 04 KX125

I bought this as a 1st aftermarket performance part for my kx125. After installing and re-jetting, my bike ran absolutely great. I'd recommend FMF pipes 2 every MX rider

Good Pipe Combo

Great pipe for the price. Put it on my '03 Yz85 and could tell some difference. It sounded really aggressive and mid-range power is insane, but looking back now I wish I had gotten the SST pipe with the Turbine Core 2 silencer. But this pipe does good if your on a budget.

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65 Questions
Answered:   65
Not Yet:   0
Location: Pennsylvania, USA
Q: Does it come with the shorty and powercore 2?
7 days 2 hours ago
Expert MotoSport Staff
5 days 14 hours ago
A: No you have the option of the shorty or the power core . The selection can be made in the drop down box. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Location: Cda idho
Q: Okay Motorsport I've been buying parts and gear from you guys almost exclusively but i just bought this exhaust for a 01 rm 125 cause that's what my?
22 days ago
That's what my tittle says 01 rm 125 but I got the parts and it's turned out the bin says wrong and shows it being a 2000 so my exhaust doesn't fit and I have some racing coming up and I really wanted to show off some new parts and ride good but I'm told to pay for shipping back to send back the fatty and stuff, but the o- rings on the pipe and about 1/4 inch past that go in would I be okay using this pipe on the bike the hardware does Match up would it cause the bike harm using it?
MotoSport Staff Expert
18 days ago
A: I would recommend getting the correct O-rings. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Location: Australia
Q: Will The fmf fatty pipe and the power core 2 silencer combo work on a Yamaha blaster 2007?
27 days ago
Expert MotoSport Staff
3 days 13 hours ago
A: All products sold on are for US models only. We unfortunately do not have product fitment for non-us models. Because of U.S. government emissions requirements, the Blaster was discontinued for 2007 and was replaced by the entry-level Yamaha Raptor 250, which uses a cleaner-burning, less powerful four-stroke engine. I can not say for sure if the 2007 AU model Blaster would be the same as the 2006 US model.
Q: What would the jetting be for an 06 YZ125? FMF does not list jetting specs on web site for this bike?
2 months 25 days ago
MotoSport Staff Expert
2 months 18 days 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.
Location: Federal District, Mexico
Q: Will this system! fit my PW80 2007? I didn't see that option for model in the list. Thank you?
4 months 14 days ago
Expert MotoSport Staff
4 months 11 days ago
A: All products sold on are for US models only. We unfortunately do not have product fitment for non-us models. FMF does not have a listing for a 2007 Yamaha PW80.

FMF Racing
TEL (310) 631-4363
Q: Will this system! fit my CR80RB expert? I didn't see that option for model in the list. Thank you?
Over 5 months ago
MotoSport Staff Expert
Over 5 months ago
A: Yes the FMF Fatty Pipe & Powercore 2 Silencer Combo fits your 2002 Honda CR80 Big Wheel. 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 combo 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.
Location: Michigan
Q: What size jet do I need for these pipes? Bike is stock now?
Over 5 months ago
Expert MotoSport Staff
Over 5 months ago
A: Here is what FMF shows on their website in the jetting center for your 2004 Suzuki RM85:

We developed these specs with a 32:1 fuel to oil mixing ratio of a 50/50 mix of race fuel and super unleaded, 0 - 1500 ft altitude at 70 degrees outside temperature.

Please note: There are way too many variables in jetting to give you a recommendation that works perfect. Use these specs for a reference to help aid you with your specific bike.

Jetting Results

Main Jet
Pilot Jet
Needle Position
Power Jet
Air Screw
Fuel Screw
Q: Do i need to have the rubber joint that joins the pipe to the muffler and what else will it require?
Over 7 months ago
MotoSport Staff Expert
Over 7 months ago
A: Your stock hardware and rubbers will fit the FMF pipe and silencer.
Location: Ky
Q: Does the tips come packed?
Over 8 months ago
Expert MotoSport Staff
Over 8 months ago
A: Yes the silencers come packed and ready to go.
Q: Does the power core 2 come with a spark arrestor?
Over 8 months ago
MotoSport Staff Expert
Over 8 months ago
A: No, for that you would want the Turbinecore 2. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
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