Choose a vehicle:

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

» Log in to use your Rider Profile Machines
FMF Gold Series Pipe, "Fatty Moto"
  • View Larger

Customer rating on this product:

Read reviews (90) | Write a review

Sales Live Chat

FMF Gold Series Pipe, "Fatty Moto"

Our price: $152.99$224.99

MSRP: $169.99 - $249.99 - You save up to $25.00 (10% off)

View Product DetailsSee all machines the FMF Gold Series Pipe, "Fatty Moto" fits.

Select type, make, model and year above

  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

  • Warranties

    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

  • Have questions?

    Live chat: Click here (Leave email if after hours)
    Email:sales@rockymountainatv.com
    Call us: 1 800 336-5437
    7am-7pm Mon-Fri 8am-4pm Sat (Mountain Standard Time)

    The FMF Gold Series "Fatty Moto" is computer designed and dynotested to focus power gain to each machine as needed. The Gold Series "Fatty Moto" offers better low to mid range with a little top end. The Gold Series "Fatty Moto" goes threw a stamping process to ensure that the pipe that you are purchasing from FMF has quality and performance with an optimum fit. The Gold Series "Fatty Moto" pipe helps to improve the throttle response, linear powerhand and enhanced over-rev. The Gold Series "Fatty pipe is FMF most popular pipe for its quality and performance. So if you like to ride trail, tracks or riding off road then this is the pipe for you.
  • Gold Series pipes are computer aided designed and dyno tested for top of the line performance.
  • Constructed of 18 and 19 gauge steel with a durable nickel plate finish.
  • Gold Series pipes for recent machines feature the exclusive "Fatty Design" for increased power.

FMF Gold Series Pipe, "Fatty Moto" Reviews

Your review could win you a $100 or $500 gift card!

Each review submitted enters you into a $100 gift card monthly drawing, and a $500 gift card quarterly drawing!

0 of 0 people found this review helpful.

Improved performance

Comments On Apr 12, 2014:Better than stock - not as good as the 'factory fatty'

Was this review helpful?

1 of 1 people found this review helpful.

Better than Gnarly

Comments On Apr 10, 2014:For me the power of the Fatty seems better than the Gnarly.

Was this review helpful?

1 of 1 people found this review helpful.

No difference over factory - Perfect

Comments On Feb 26, 2014:I like the way the Factory KTM pipe performs...it is a good mix of high and low end. I was hoping the Fatty would mimic the same performance. I have not notice any change in behavior. Perfect for me.

Was this review helpful?

0 of 0 people found this review helpful.

FMF For Life!

Comments On Feb 20, 2014:I put FMF exhausts on all my bikes. Great product for the price! You can feel a significant power change vs a stock exhaust on any bike. Easy to install, gives you more power, and makes your bike look sharp! I love FMF products, I'm a customer for life!

Was this review helpful?

0 of 0 people found this review helpful.

excellent

Comments On Jan 14, 2014:very good pipe from low to high rpm helps all the way through the powerband

Was this review helpful?

0 of 0 people found this review helpful.

BRAAAAP

Comments On Dec 10, 2013:great power and sounds great

Was this review helpful?

0 of 0 people found this review helpful.

awesome pipe..

Comments On Nov 29, 2013:set up for a mid to top motor,,pipe and silencer combo works well

Was this review helpful?

0 of 0 people found this review helpful.

Feel the power

Comments On Nov 17, 2013:Adds great power sounds awesome

Was this review helpful?

1 of 1 people found this review helpful.

Excellent Pipe

Comments On Nov 15, 2013:Much better pipe than the Gnarly for the CR500. Not nearly as torquey on the low end but runs way better in the higher RPM's which is perfect for ice racing.

Was this review helpful?

0 of 0 people found this review helpful.

2011 250 2 stroke KTM

Comments On Oct 02, 2013:Compared to stock pipe the fatty has less low end power just off idle, its not a bad pipe but the stock offers more power, from mid to top it seemed a bit smoother but i did not notice extra grunt, the pipe fit is a little different but lines up ok, rather a thicker stock pipe over the fatty , overall its close to stock but not as good.

Was this review helpful?

Frequent Buyer ProgramParts Finder