Holley EFI Terminator X Max 6l80/6l90 Transmission Kit

Holley EFI Terminator X Max 6l80/6l90 Transmission Kit

Marsoni

M251S

$293.98

Get it in 3 business days with 1 day shipping. Friday, May 29

Holley EFI Terminator X Max 6l80/6l90 Transmission KitOVERVIEW Add 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

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Really nice and clean looking watch. Fairly easy to adjust the watch band, with a little patience. Item description stated battery operated, but I don’t think it is as there is no indication that it has a battery in it. Other than that, really decent watch! I would have given it a five star rating if it were battery powered.

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Reviewed in the United States on March 23, 2026