Installation Time
(approx) 5 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
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Holley EFI Transmission Control Harness; 4L60E (09-13 Sierra 1500)Find parts that fit my vehicle
Item S162722
Our Price
$215.95 each
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- Complete Kit for Controlling 2009+ GM 4L60E with Sniper 1 EFI Systems
- Includes Transmission Harness Specifically for 2009+ GM 4L60E
- Designed for Electronic 4-Speed Overdrive Transmissions
- Controls Upshifts, Downshifts, and Torque Converter Lockup
- Shift Points Adjustable Based on Vehicle Speed and Throttle Position
- Programmable through 3.5-Inch Touchscreen LCD on Sniper 1 EFI Systems
- Full Tuning of Transmission Line Pressure
- MAP Sensor Needed for Line Pressure Tuning on Forced Induction Applications
- Data-Logging Capable via Sniper PC Software
- Stand-Alone Version Available for Carbureted Engines
- Controls and User Interface Similar to Dominator and Terminator X MAX ECUs
- Fits 2009-2013 Sierra 1500 Equipped with 4L60E Transmission
Description
Transmission Control Solution. The Holley EFI Transmission Control Harness for the 4L60E is a comprehensive system designed to manage the electronic transmission functions of GM 4L60E transmissions from 2009 and newer. This kit integrates seamlessly with Sniper 1 EFI systems, enabling precise control over shifting and torque converter lockup to improve drivability and transmission longevity.
Construction and Appearance. The harness is constructed from high-quality, durable wiring materials engineered to withstand automotive environments. It features robust connectors designed for secure, reliable connections, finished with protective sleeving to resist abrasion and extend durability.
Installation. Installation is straightforward and designed for seamless integration with compatible GM transmissions and Sniper EFI systems. No drilling or significant vehicle modification is required, simplifying the process for most users.
Application. This transmission control harness is precisely configured to fit the 2009 through 2013 Sierra 1500 when equipped with a 4L60E transmission, ensuring accurate compatibility and optimal functionality for these model years.
Holley EFI 558-455
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Control Harness
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