Today we have a customers 2017 Duramax LP5 E 41 ECM. We’re going to be unlocking it or upgrading it with a HP tuners upgrade box/cable. We are going to do the entire process on the bench and then we’re going to be flashing a shift on the fly SOTF tune into it. Once it’s done it will be fully plug and play, not check engine lights from its weight loss surgery, and fully adjustable SOTF tune via the cruse control buttons on the vehicles steering wheel.
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Johnson Customs
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