I had mine out for a while and was learning to tune with the dhp concurrently. I had a really hard time getting my maf dialed in, which could have been the tuning learning curve and my own failure. I sold the dhp and bought an hp tuner and overkill started tuning. the maf would get close but would never come in until I put the honeycomb back in. making maf adjustments now usually is very rapid and comes in within 2 or 3 adjustments, not like before where overkill made like 8 adjustments, and never coming in to where it should have been.

edit: I know it's an old post, just wanted to share my .02.