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Ive also looked into black bear. I like what they do but having to use my truck daily I would have to pay the core fee to just have a programmed ecu sent to me. And my smog guy told me it may not pass smog with a reprogrammed ecu, but he isn't 100% sure.
Im still having trouble understanding how improving power (mostly low end torque) wouldn't translate to an increase in mpg. Letting the engine make the same amount of power eaiser or at a lower rpm seems to make sense in my head. My thinking is this. If you have two identical trucks with idenical loads and total weight. But one has 500hp/tq and the other has 250hp/tq. Wouldnt the one with more power be able to do the job eaiser? There for reducing load on the engine and thus decreasing throttle input/fuel usage? Both being driven same route/speed ect.
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