Would like to know the easiest way to get alittle more perforemance out of my 2002 honda 450s without blowing it up if someone could give me some pointers that would be great

 

The typical mild mods are to open up the air intake, a more free flowing air filter, an aftermarket muffler....and of course a rejet.

Going a step further, but without tearing into the engine would be an aftermarket cam, a carburator, and maybe ignition.