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$ImageURL1$FiTech 70051, Ultimate LS Standalone, ECU, Trans Control, Transmission Control, LS, 4L60, 4L65, 4L80, 4L85, GMFiTech Ultimate LS Standalone ECU w/ Trans Control for 4L60 / 4L65 / 4L80 / 4L85PART NUMBER: 70051BRAND: FiTechDESCRIPTION If you’re considering utilizing a factory intake, injectors, and cable operated throttle body, with a 4L60, 4L65, 4L70, or 4L80 GM transmission, FiTech’s Ultimate LS standalone self-learning ECU with transmission control will get your engine re...

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