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Honda TRX250X | Full Exhaust System

  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System
  • Honda TRX250X | Full Exhaust System

Honda® TRX 250X

Available as a full system, the HMF exhaust systems for the Honda® TRX 250X transforms the relatively small 229cc engine into a whole new machine.  Combined with some basic jetting changes, throttle response is much improved, along with easier starting, smoother operation, and greater power and torque.

Performance Series
Full System 
Available in multiple colors for the shell and styles for the end cap owners can customize the look of their system.  The full system steps up in diameter multiple times to optimize exhaust flow for better power and torque finishing through the HMF signature 2-1/8” core.

Competition Series
Full System
With multiple steps in diameter to optimize exhaust flow for increased power and torque the Competition series exhaust finishes through the unique TriMax core and includes multiple end cap inserts allowing users to fine tune final power output and sound.  

Exhaust Fits: 
(11-21) TRX 250X
(01-10) TRX 250EX, SporTrax, EX8

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 250X ATV Accessories

Tuning

Recommended Tuning
100 Keihin Round Main Jet
105 Keihin Round Main Jet (air box lid removed)
Use 40 Pilot Jet in machines with a stock 38 Pilot Jet

HMF Basic Jet Kit Includes
100, 105, 110 Keihin Round Main Jet, 40 Pilot Jet

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.

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