HMF Racing Muffler Honda TRX 400EX 99-14 Performance Slip On Exhaust
Customer Ratings
HMF Racing Muffler Honda TRX 400EX 99-14 Performance Slip On Exhaust

Today, HMF is a leading worldwide supplier of performance exhausts for the Powersports Industry. Pushing the limits in our research and development is how we come up with new ways to solve the needs of off-road riders. HMF is on the front line of Powersports engineering to keep riders, like you, moving ahead towards the next adventure.
The Performance Series exhaust has been the staple of the brand since the origin. Whether on dirt or pavement, this exhaust system has the capability of generating an even increase in horsepower and torque while distributing that signature HMF tone.
The Honda TRX 400EX is available as a Slip-On System in the Performance exhausts. The Performance Series Slip-On exhaust picks up 10-15% more horsepower and torque throughout the power curve. The mufflers will be roughly 4–6 dB louder than the stock muffler, but HMF Quiet Core Inserts can reduce that by 2–6 dB.
Details:
Series: PerformanceSystem: Slip On
Mount: Side
Fitment:
- Honda Sportrax 400 TRX400EX 2x4 1999-2014
Note: Image is for reference only, actual product may vary slightly.
Today, HMF is a leading worldwide supplier of performance exhausts for the Powersports Industry. Pushing the limits in our research and development is how we come up with new ways to solve the needs of off-road riders. HMF is on the front line of Powersports engineering to keep riders, like you, moving ahead towards the next adventure.
The Performance Series exhaust has been the staple of the brand since the origin. Whether on dirt or pavement, this exhaust system has the capability of generating an even increase in horsepower and torque while distributing that signature HMF tone.
The Honda TRX 400EX is available as a Slip-On System in the Performance exhausts. The Performance Series Slip-On exhaust picks up 10-15% more horsepower and torque throughout the power curve. The mufflers will be roughly 4–6 dB louder than the stock muffler, but HMF Quiet Core Inserts can reduce that by 2–6 dB.
Details:
Series: PerformanceSystem: Slip On
Mount: Side
Fitment:
- Honda Sportrax 400 TRX400EX 2x4 1999-2014
Note: Image is for reference only, actual product may vary slightly.