Installation Time
(approx) 20 Minutes
Difficulty Level:
Simple installation for anyone.
FREE 1 to 3-Day Delivery on Orders $149+ Details
Holley EFI Transmission Control Harness; 4L60E (2009 Yukon)Find parts that fit my vehicle
Item GY15210
Our Price
$215.95 each
Military, Medical & First Responders
$10.80 Available in AT Cash Rewards.
Confirm Eligibility
Confirm Eligibility
CONFIRM THIS FITS YOUR VEHICLE!
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Shop Owners Save More!
Sign up for our dealer program
Product Information
Features, Description, Q&A, Specs & Installation
Features
- Complete Kit For Controlling 2009+ GM 4L60E Transmissions With Sniper EFI Systems
- Includes Transmission Harness Part# 558-455 For 2009+ GM 4L60E
- Designed For Sniper EFI Applications (Requires Sniper Version 2 ECU and Handheld Firmware)
- Programmable Upshifts, Downshifts, and Torque Converter Lockup
- Full Tuning Of Transmission Line Pressure (Requires MAP Sensor For MAP-Based Line Pressure Tuning)
- Controls Electronic 4-Speed Transmission Applications
- Tuning Via Existing Sniper 3.5-Inch Touchscreen LCD
- Emission Legal For Controlled, Uncontrolled, And Racing Use Vehicles
- User Interface Layout Mirrors Dominator and Terminator X MAX ECUs (Excluding Paddle Shift Functions)
Description
Transmission Control Kit. The Holley EFI Transmission Control Harness for 4L60E is a comprehensive solution designed to manage 2009 and later GM 4L60E transmissions when used with compatible Sniper EFI systems. It offers precise control over shift points, torque converter lockup, and transmission line pressure to enhance transmission performance and durability. This kit is essential for users integrating electronic transmission management with their EFI setup for smooth, reliable operation.
Construction and Appearance. The kit includes a durable transmission controller unit paired with a dedicated transmission harness specifically designed for the 2009+ GM 4L60E transmission. The components feature automotive-grade connectors and quality wiring to ensure secure communication and reliable electrical integrity.
Installation. Installation is straightforward, requiring no drilling or major modifications. The harness plugs directly into the transmission and interfaces seamlessly with existing Sniper EFI systems, enabling quick configuration and tuning via the installed 3.5-inch touchscreen.
Application. Designed to control GM 4L60E transmissions from 2009 and later, compatible with Sniper EFI systems equipped with Version 2 ECU and handheld firmware. This product does not specify fitment to any particular vehicle model.
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
- Harness
Questions & Answers
No questions about this product yet.
Ask the First Question
