I bought one of the new model superchips and i had one before but I think it was stolen out of my truck, so I already have the intake/air box and the 4" exhaust (2 pipes going out the back). But I was wondering if anyone has one of the newer ones and knows what the best settings would be for it. I mostly have it in "high performance" except when I tow a camper (12500lbs) the obviously use "towing" but I was thinking if I oculd get more pwoer by changing the gear ratios and things and if anyone has and suggestions to which settings would be the best. Thanks for your help.