Free shipping Shopping cart Gift certificates
For over 35 years FMF has delivered superior power and performance to motorcycle enthusiasts around the globe. FMF mufflers are developed over years of championship offroad racing. FMF Racing FMF Exhausts are made in the USA from the highest grade aircraft-spec materials such as titanium, stainless steel and carbon fiber components.

See available FMFApplications

  FE 390/450/570, FS 570, FX 450 2009-12
     Availability Guide: If you order an item that is on backorder, we will not charge your card until the order is ready to ship.

     = Normally ships the same business day     = Ships in 1 to 2 business days     = On backorder from the manufacturer

FMF Muffler Cost Add To Cart

Larger Images

Exhaust Products - Larger Images See available FMFApplications
FMF Muffler  --------------------------------------------------------------------------

PowerCore 4 FMF-045266

When designing the PowerCore4, FMF looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.
  Overall increase in power and torque
  Durable stainless steel and aluminum construction
  Advanced packing material for maximum longevity
  Champagne color anodized can
  Removable spark arrestor included
  Optional 96dB quiet insert available

MegaBomb Header

FMF Header  --------------------------------------------------------------------------

MegaBomb Header Stainless Steel FMF-045480

The science behind the MegaBomb header may be FMF's greatest engineering accomplishment to date. You can bolt on a MegaBomb with an existing FMF Racing slip on for as much as a 3hp boost, plus the MegaBomb actually reduces noises levels by as much as 1.5dB. The MegaBomb technology is revolved to produce more low end to mid range gains as well as broadening out the mid to top end power gains over stock. The MegaBomb is best used for Motocross/Supercross and GNCC style trails. Used by Factory Teams, the MegaBomb is the next level technology you can have today.

Produces long header torque and short header over-rev   Reduces sound output as much as 1.5dB   Increases output from stock motor as much as 3hp   Made from premium American TiMetal material.


About FMF ----------------------------------------------------------------------------

Over the decades, FMF seen an amazing transformation in the world of motorcycles and ATVs. The progression of the technology is one of the challenges that keeps FMF going. FMF was there in the days when the single-shock and water-cooled engines were huge innovations and they're glad to be here now for the aluminum chassis and electronic fuel injection. Their goal will never change - take the most advanced machinery to its limit by building the world's best performing exhausts. And its a fact, they build every exhaust by hand from start to finish right here in the U.S.

At the end of the day, there is always one major force keeping them motivated—throwing a leg over the bike and heading for the trails or the track. Their biggest reward for is knowing they're helping customers get the most out of their riding experience. They still ride every chance they get so they never forget why they got into this business in the first place.

History - FMF Racing (Flying Machine Factory) was one of the first aftermarket motorcycle manufacturers, having been started by Don Emler in 1973. From its humble beginnings in Emler's garage, FMF Racing has become 1 of the leaders in manufacturing exhaust pipes, making a number of different pipes for motorcycles and offroad vehicles of all types.