first let me say i love my banshee but if the 500 is piped, jetted, etc. youre gonna be hurtin for certain. buddy of mine HAD a 500. they dont call that thing a quadZILLA for nothing. youre only hope is that it breaks down (and it probably will). when we raced i pulled him by about 2 bikes by 5th gear it was over, he came by me like i was tied to a stump. we switched quads and it was the same story. they are junky but da** they are fast.