naaaawwwzzz is cheating
+1 for the stickers.
but seriously, a mid-pipe is probably the best as far as a bolt on goes, but a forced indduction ($$$) will pin you back in your seat more than any other mod. i know its expensive, but you can add up the cost of almost every bolt on, cams, gears etc. on a 2V, and it will probably be close to if not more than that of a blower, and the blower will give you more power.