There is nothing to tune with the jb4. In fact there's even an auto tune map 5.
But if by tuning you mean installing, I'm sure many can give you a hand here. It's plug and play after all.
Shop mechanics here don't know how to operate a jb4 and know all it's features, the shops only do install best way to learn is to read n54tech.
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I can help with Coding in Vancouver. PM me
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