If you are running a 4L60e or 4L80e harness with your Holley EFI system, this harness is what you need to control the transmission!  This item is a replacement harness ONLY, the Holley ECU or transmission controller is NOT included!

IF YOU PURCHASE ANY LENGTH OTHER THAN THE STANDARD 7FT, THE HARNES WILL HAVE A 2-3 BUSINESS DAY LEAD TIME.

Features

• Built in the USA!  We manufacture all of our products in our Columbia, KY, production facility!
• OE Production Tooling is used to assemble this product!
• OE Connectors, Terminals, and Seals – NO knock-off China Parts!
• OE Grade TXL Cross-Linked wire with matching Holley color codes!
• OE Grade sliding firewall grommet to seal your firewall if you mount the controller inside!
• Can be made longer for a custom application if needed!