programmer vs. programmed ecm
So i want a little more power outa my 4.3 without getting into the internals of the engine. Which is more cost effective, more power, and maybe a little better economy? I like the fact that I can put my blazer back to stock with a programmer with a few button pushes, and it can read codes that come up too.
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More info would help like what programmer/s are you considering?
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