i really like my honda 300 4x4 and would like to up the power output seeing how i'm running 25 inch tires. can anybody give some advice about replacing or upgrading the stock pipe from the head back and also if doing so would i need to rejet ??? is their a power kit available ...

 

HIGHLIFTER will hook you up phat, when ever you put on a high flow pipe or change to a high flow filter you always need to rejet, if not you will not get maximum gain form your new parts and you run the risk of running too lean and overheating the bike which can cause major damage.