I have not heard of anyone seeing no benefit, however I have heard of the margin of benefit being different. The Atlas 40, as most running it can attest, usually will give the driver an increase throttle response and boosted fuel economy. If you wish to purchase our Gryphon FICM programmer, you can purchase it from our website (
Power Hungry Performance - FICM Reprogramming) for $400. We do offer a loaner unit to the continental United States for $150 but there is a $250 deposit that will be refunded when the Gryphon is returned undamaged.
Personally I installed the BDP 6-Phase wired to 58v with the Atlas80 tune. With this I have noticed economy gains of ±3.5 per gallon.
About Me
06 f350 CC SB FX4 XLT UPFITTER, TOW COMMAND, CHROME PACKAGE, MOON ROOF: 
Positive
Neutral
Negative