i know this post is kinda out from the dead, but there is no sense starting a new thread for it. so in all reality the total cost diff between maft pro and standalone would be what? $800-$1000? if your planning on going speed density mode on the maft then you already need the wide band, intake temp, and gm sensors. those are the same needed for a standalone correct? the way i am thinking is if your already going the lengths to go speed density on maft then why not spend the extra money to have the maximum controling ability? anyone have total cost of either sysytem after they were installed? i was planning on maft pro myself after my rebuild. but i am leaning towards standalone for the fact of putting alota money in a motor, i want the full benifits. am i wrong?