hello everybody, i have a 2006 gp normally asperated 3800 series 3 engine with dual exhaust. does anyone know of a programable tuner for the ecu that will allow adjustments on fuel and ignition curves. as well as adjustments to transmission shift points and line pressures, as well as upper road speed limiters? what are the most cost effective ways of increasing hp for this engine and trans combo? I would appeciate any help that you can offer.