HMF Competition Exhaust for TRX 400EX/X is available as a Slip-On and Full System in the Competition series. The Slip On exhaust picks up 10-15% more horse power and torque throughout the power curve. The Full System adds another 5-10% more horse power.
The Competition Series was designed and tested for sport ATVs. It features 3 inserts that affect the sound and power differently, giving you complete control over the type of power and sound you need, when you need it.
