Don't get the wizaird. Make your own for $50...it will do as good if not better. You don't have to make it all fancy nice with roof flashing, custom tubing bends...hell just get a piece of 4" PVC pipe...a coupler, and a 22.5* bend and put a filter on it and shove it in the fender.
If you are getting a mail order PCM get an Intense...since no one seems to be going anywhere at Overkill lately from what I keep hearing...
Downpipe is good too...the money you save from not buying the wizaird and the tuner itself...get a set of new plug wires and autolite 104 spark plugs and a 180* T-stat (if you haven't done those already)...might even be able to scrimp up enough for a front powerlogged manifold...