unless, your going with some sort of forced induction, theres no reason to change the MAF you have, especially since your wanting to get a chip. I vote for skipping the Diablo and getting a Street Flight chip.
Jim Hahn
1996 T-Red Contour SE Reborn 4/6/04
3.0L swap and Arizona Dyno Chip Turbo Kit
364 whp, 410 wtq @ 4,700 rpm