HMF Engineering
Dirt Bike Exhaust

HMF Engineering specializes in custom parts and accessories that come in a wide assortment of colors. With performance, power, and customizable colors, HMF Racing offers the complete package. Standout in the crowd with your very own HMF Racing Exhaust and Accessories.

HMF Engineering manufactures exhaust systems for both racing ATVs and racing Dirt Bikes. Whether you have a Yamaha, Polaris, Kawasaki, Suzuki, Honda, or any other brands, know that HMF Racing will have the perfect exhaust system for you. HMF Engineering can completely change the look, sound and performance of your dirt bike.

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HMF Dirt Bike Exhaust Types

  • Performance Series
  • Competition Series
  • Penland Pro Series
  • Swamp & Swamp XL Series
  • QRS Series

All Around Performance

exhaustSetting the standard for power and value, the HMF Performance Series has been track tested with over a decade of championships. The specially designed, unrestricted core provides maximum flow and allows the exhaust to increase horse power and torque evenly throughout the entire power curve. The trademark to the HMF Performance Series is the exhaust's sound. With a deep, aggressive sound, you'll typically see a 2-10 dB increase from the stock exhaust system. And with industry-leading end cap and color options, you are sure to add a completely custom look and sound to your machine.

The Performance Series distributes power evenly throughout the entire RPM range. 

decibals2-10 dB INCREASE: 
Depending on the model, you can expect a 2-10 dB increase over stock. 

The Performance Series uses a 2 1/8" non-restrictive core for maximum flow. 

The exhaust shell is made of T6061 Aluminum that weighs substantially less than stock.

The Insides

The Performance Series Exhaust system has an unrestricted core surrounded by high performance glass wool packing.