Flipping you rims front and rear will give it some more width, and make it handle better. You will have to dismount the front tires from the rim, install a valve stem backwards, and drill a new hole on the opposite side of the original, and install a stem there. Upgrading the shocks is the best thing you can do, outside of extended a arms. Many like the 2001 raptor rear shock, but, the banshee rear feels awesome to me, and the chain wont ride harder on the lower roller like the raptor shock will make it. You will have to heat up and "dent" the air box for the rezzie on the banshee shock to clear, but, that's easy. Banshee front shocks can be swapped in as well, unless you want to spend atleast 400-425 on some works at steelers. I have them as well, and like them A LOT. Only cheap after market front shocks you will find are from progessive suspension. They go for 225ish? Have not used them on a warrior, but we have them on my dad's trx300 4x4 (no others are made for the old girl) and he loves em. Don't know how they are for the warrior. That pretty much covers the suspension dept. You can/should upgrade the tie rods with a 12mm HD kit, from moose, or all balls. Power wise, better intake setup, a good slip on muffler, or maybe a complete system, rejet it, and you will see a nice power increase. Take and put a spring from a clicker pen in place of the stock accel pump spring, and put a valve stem cap on the top of the accel pump rod. That cuts the space between the rod and carm down to a few thousandths of an inch. Doing those two things will make the throttle responce better. Other than that simple stuff, you start getting into higher comp pistons, cams, and the like. A stage 1 or 2 hotcam can be used with stock springs, so that is a simple install. Do the vito's +4 key, that is easy, and you only need a new stator cover gasket and a flywheel puller to do it.