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 Power Core IV S/A Exhaust System
  • View Larger
  • Videos

Customer rating on this product:

Read reviews (33) | Write a review

Sales Live Chat

FMF Power Core IV S/A Exhaust System

Our price: $179.99$539.99

MSRP: $199.99 - $599.99 - You save up to $60.00 (10% off)

View Product DetailsSee all machines the FMF Power Core IV S/A Exhaust System 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 Power Core IV S/A Exhaust system is lightweight and has great sound quality also giving you increase in power over the stock silencer. The FMF Power Core IV S/A Exhaust system is easy to perform maintenance on, repack without any special tools and also easy to install to your machine. The FMF Power Core IV S/A Exhaust system is not only great for its lightweight and great sound but it also provides a strong performance edge for your machine making this an unbeatable silencer.
  • FMF's Power Core IV provides outstanding power over stock exhaust systems as well as reducing weight in comparison to the heavy stock steel silencer.
  • The canister style silencer provides uninterrupted exhaust flow and comes with a forestry approved spark arrester.

FMF Power Core IV S/A Exhaust System 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.

Too loud

Comments On Oct 11, 2013:I bought a used ttr90 for my daughter that had no spark arrestor, so I fit this spark arrested exhaust to it. It's now forest legal. Fit and finish we're fine with no surprises on the install. The exhaust note is obnoxiously loud though.

Was this review helpful?

0 of 0 people found this review helpful.

Great System

Comments On Oct 11, 2013:Bought this FMF Powercore 4 S/A System for my 2003 Honda XR80. I sold the bike, but the system definitely increased the overall power, from top to bottom. I always run FMF, because their quality is great, and everything is made right here in the USA. Definitely recommend.

Was this review helpful?

0 of 0 people found this review helpful.

Cool pipe for the money

Comments On Sep 05, 2013:Sounds great on my little TTR110.

Was this review helpful?

0 of 0 people found this review helpful.

Best bang for your buck

Comments On Aug 31, 2013:put this on my Honda 300, and I did notice a decent power gain, and this makes my quad sound sick! its a lot lighter than the stock exhaust. I also tuned the carb so it could accept the new exhaust better. so with a stage 1 jet kit and the exhaust my quad rips compared to stock.

Was this review helpful?

1 of 1 people found this review helpful.

Nice pipe

Comments On May 10, 2013:Did not notice a big power gain but a lot of weight difference from the stock and that alone made a huge difference.

Was this review helpful?

0 of 0 people found this review helpful.

FMF Power Core IV S/A

Comments On Feb 06, 2013:I have installed and run lots of different exhaust systems on my bikes, some of them way more expensive, but none of them fit as nice, installed easier or gave any more performance. Best pipe for the money for sure.

Was this review helpful?

0 of 1 people found this review helpful.

power core exhaust

Comments On Sep 03, 2012:really looks nice after we figured out how to install..

Was this review helpful?

0 of 0 people found this review helpful.

Awesome!

Comments On Aug 13, 2012:I put this on 2009 crf70r it trenches the lawn it has loads of torq!

Was this review helpful?

0 of 0 people found this review helpful.

Forrest service approved performance

Comments On Jul 22, 2011:I have the shorty, now I have this for the state trails. Perfect fit, great FMF performance.
Additional Comments On Jul 22, 2011:This was installed on my daughters pit bike. Wow, this thing sound like a big 4 stroke, it is awesome! Noticeable power gain.

Was this review helpful?

2 of 3 people found this review helpful.

sick exhaust

Comments On Jun 01, 2011:put this exhaust on a 2008 ttr 125l with a jet kit and it hauled. My bike previously topped out at 70 basically stock now its pushing 85. p.s. I have 160 main jet 50 pilot jet.

Was this review helpful?

If you cannot see the videos you may need to upgrade Adobe Flash Player. Get Adobe Flash Player

Instructional

How To Repack A Silencer For Your ATV Or Motorcycle

Frequent Buyer ProgramParts Finder