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Performance Series

The Performance Series from HMF has been the staple of the brand since it's origin. Whether on dirt or pavement, this exhaust system has the capability of generating an even increase in horse power and torque while distributing an aggressive deep sound.

starting at $159.95 Performance Exhausts

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Swamp Series

Don't let the name fool you. The Swamp Series from HMF is the original in setting new standards for horse power, sound, and durability on a utility machine. The large stainless steel shell has more internal volume to create more horse power at lower sound levels.

starting at $399.95 Swamp Exhausts

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Swamp XL Series

The younger brother of the Swamp Series, the Swamp XL (extra loud) offers slightly more horse power than the standard Swamp Series. It’s non-restrictive core has nothing inside to control the sound pulses, so the exhaust is the loudest of all our series.

starting at $399.95 Swamp XL Exhausts

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Competition Series

The Competition Series was designed and tested for Sport ATVs and Dirtbikes. It features 3 inserts that effect the sound and power differently, giving you complete control over the type of power and sound you need, when you need it.

starting at $349.95 Competition Exhausts

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Penland Pro Series

Backed by the ATV legend Mike Penland, the Penland Series was developed for serious off road racers and trail riders striving to achieve more low end torque. The removable Torque Range Modifier adds a low-to-mid range punch for better hook-up in rough conditions.

starting at $0.00 Penland Pro Exhausts

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Signature X Series

Champions have two things in common; The drive it takes to win and the tools to dominate. HMF has been developing championship exhausts for over 15 years, starting with our Penland Pro and evolving to the Ballance Pro Series. Now, Chris Borich unveils the all new HMF Signature X Series.

starting at $329.95 Signature X Exhausts