Get some ITP Holeshots or if your in the dunes get some paddle tires. SKAT TRAK is a good brand for dune tires. Get some pipes, get an air filter. If you buy a banshee for what is the retail? 6000? then you could probably still afford a good engine kit after all that stuff if youre gonna spend 9k. If you spend an extra 3k on your banshee you WONT be dissapointed. Most other guys here should help because they all have banshees, I don't. I'm sure I'm forgetting a bunch of stuff...