- OR -

Honda TRX 300 Exhaust

  • Honda TRX 300 Exhaust
  • Honda TRX 300 Exhaust | HMF Performance Series
  • Honda TRX 300 Exhaust | HMF Performance Series
  • Honda TRX 300 Exhaust | HMF Performance Series
  • Honda TRX 300 Exhaust | HMF Performance Series
  • Honda TRX 300 Exhaust | HMF Performance Series

Honda® TRX 300EX

The Honda TRX 300EX is available as a Slip-On and Full System in the Performance and Competition exhausts. Each series Slip On exhaust picks up 10-15% more horse power and torque throughout the power curve, and the Full System adds another 5-10% more horse power. The mufflers will be roughly 4-6dB louder than the stock exhaust, but the Competition Inserts and HMF Quiet Core can reduce that 2-6dB.

Fits: (93-12) TRX 300EX, SporTrax, EX8. EX3

Fuel tuning is required learn more

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. (check with local dealer). See the tuning settings below for the proper fuel tuning solution on your machine.

Exhaust Systems

Honda® TRX 300EX ATV Accessories

Tuning

Recommended Tuning
125 Keihin hex (Slip On & Full System)

HMF Basic Jet Kit Includes
120,125,130 Keihin hex

Low Speed Fuel

Going down on the number scale will reduce low speed fuel. Going up on the number scale will increase low speed fuel.

Mid Range Fuel

Going down on the number scale will reduce mid range fuel. Going up on the number scale will increase mid range fuel.

High End Fuel

Going down on the number scale will reduce high end fuel. Going up on the number scale will increase high end fuel.

Green Lower Switch Point

Going down on the number scale will turn green mode on earlier. Going up on the number scale will turn green mode on later. These modes typically will not need adjusted from their base setting.

Yellow Lower Switch Point

Going down on the number scale will turn yellow mode on earlier. Going up on the number scale will turn yellow mode on later. These modes typically will not need adjusted from their base setting.

Red Lower Switch Point

Going down on the number scale will turn red mode on earlier. Going up on the number scale will turn red mode on later. These modes typically will not need adjusted from their base setting.

Hook me up! Get $75 off your next exhaust order.

Sign up for the HMF Community and receive the following perks:

  • $75 off your next exhaust purchase
  • Details about upcoming HMF products
  • Exclusive product giveaways
Sign Me Up!

No, thanks. I'll pay full price for my powersports needs.