Join Date: Aug 2006
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I agree, get a programmer. Lots of boxes and down loaders to choose from. The Edge Juice / Attitude is one of the most popular boxes, and the Predator 2.02 is one of the most popular down loaders. I had an Edge EZ and was happy with it's performance.
If I understand correctly, a stock Allison will handle approx. 75 additional hp (or approx. 700 total rear wheel lbs-ft torque) before it protests; the torque convertor clutch and / or C2 clutch will slip.
You may wish to consider a gauges; exhaust gas temperature (EGT) and boost.
2004.5 2500HD CCSB, 4x4, D/A, tow tune, TD-EOC
Goodies occupying space in garage: Corsa full exhaust, Isspro gauges, KB CAI
2006 Tahoe Transport 33WTB; 14,000 lbs.