Holley EFI Terminator X-Max Transmission Controller - 4L80 / 4L90 19435211 medium duty trucks

medium duty trucks

400 in Raised Camshaft

1 x 2 in Steel

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Chrome / Black Face

Holley EFI Terminator X-Max Transmission Controller - 4L80 / 4L90 19435211 medium duty trucksAdd GM 6L80 90E transmission control to any existing vehicle utilizing a Terminator X Max ECU. A departure from traditional Holley EFI transmission control, the Terminator X Max ECU allows the ability to use 2007+ GM 6L80E and 6L90E transmissions by communicating via CAN with the internal TCM (Transmission Control Module). The supplied Holley EFI OBDII Transmission Tuning Handheld is used to adjust Shift Points, Tire Size and Gear Ratio. The