The Honda® TRX 250X features a 229cc air-cooled OHV longitudinally mounted single-cylinder four-stroke motor with a Five-speed transmission with Reverse. Our HMF™ Performance Series exhaust system picks up an excellent amount of horsepower when it's tuned with our Recommended Jetting Specs and proper air filters.
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.