Definetly go with the juice with attitude. Very nice and lots of power and adjustments with all the gauges you will need to monitor. Yes you can piggy back on the juice with attitude I think. Atleast in the second gen stuff.
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2002 Dodge 24 valve Cummins 2500 4wd shortbed, Edge Juice w/ Attitude, Fass HPFP 150,6 Speed, Straight Piped, BHAF w/ pre-filter, Rhino Liner, 85000 miles
1996 Cummins, Automatic Tranny, bone stock, waiting to get gauges to put the fuel plate in, 107000 miles