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Holley EFI Transmission Control Harness - GM 4L60 (Pre-2009) and 4L80

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Original price $337.95
Original price $337.95 - Original price $337.95
Original price $337.95
Current price $299.95
$299.95 - $299.95
Current price $299.95

Expanding our transmission control options for our EFI systems, this harness provides plug and play for Pre-2009 GM 4L60 and 4L80 transmissions using a Dominator. This also contains a J4 connector to operate GM electronic transmissions.

Processing & Shipping Overview

Processing occurs before shipping.

Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.

Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.

For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.



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