That's just wrong. Im lowered and I have had a set of Pzero Nero's that have been on for 26000 miles and just maaaayybe now are starting to show some signs of wear!
Are you wearing out the inside or outside edges? SPC ball joints and a proper custom alignment (not just to Mazda spec which is too loose) made a HUGE improvement in my front tire wear.
you definitely need an alignment man. im dumped like 4 inch's on larger sway bars, and my stock tires lasted till 60k miles. and im now just on my 2nd set of tires at 76k miles.