I am presently using an older fast box, but being "forced" to spend $500 canadian dollars on a wideband calibrated to work with the box has got me a bit flustered. I am just looking at the costs of the new dfi system and a innovate wideband unit, which will allow me to choose between bosch sensor or ntk, without any calibration needed. Lm-1 uses free air calibration,so as the sensor degrades it can be compensated. Lets get some figures going here:
Lm-1 is $349
gen7+ ecu+ cable+ software etc is about $1000 give or take a bit, with no harness.
Jack Cotton hinted the pricing is the same as the old fast system, so this is what i am basing my comparison on so far, other than that i am just guessing.