HMF Racing Slip On Exhaust for Yamaha YFZ 450R-X 09-20

Exhaust Series: Performance

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 horsepower and torque while distributing an aggressive and deep sound.

• Lightweight, shell made of T6061 Aluminum.
• Customizable with multiple colors and endcaps.
• Broad, even power gains: The Performance Series distributes power evenly throughout the entire RPM range.
• 2-10 DB increase
• Unrestricted Core: The Performance Series uses a 2 1/8" non-restrictive core for maximum air flow.

System: Slip On

By far the most popular, easiest, and simplest to install the system, HMF slip-on systems are designed to be a direct replacement for a vehicle's original silencer. Typically this will be a one-piece silencer with an inlet that matches up to the vehicle's original head pipe.

Tuning Required

Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine while voiding the warranty on your exhaust and possibly on your machine. contact us for the proper fuel tuning solution on your machine.

Design Your Exhaust!

HMF Blackout exhausts have a specialized ceramic coating that is formulated to withstand extreme temperatures,choose a standard exhaust for more color and end cap options.

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