The Tuner Store
GM LS 24X EFI HARNESS KIT
GM LS 24X EFI HARNESS KIT
In stock
-
All orders are dispatched the next business day!
-
We will beat any price. We back all products with a 1 year guarantee.
Order in the next 0 hours 0 minutes to get it by /06/2026
Couldn't load pickup availability
Guaranteed Safe Checkout
for use with Terminator X MAX ECU's, requires Terminator X V3 Build 100 or later firmware.
Overview
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 Terminator X V3 Software provides the ability to dial in Torque Management to optimize the desired shifting characteristics when using a 6L80/90E Transmission. Terminator X V3 software also allows a user to control the Secondary Shift Mode within the Transmission TCM and allows use of Tap Up/Down Shifting. Within Terminator X V3 PC Software o Virtual Torque Management Tables o Virtual TPS Tables to dial in shift characteristics regardless of engine o DBW and Timing torque reduction tables to create smooth shifts Within the Holley EFI OBDII Transmission Tuning Handheld o Ability to read and clear TCM fault codes o Ability to raise and lower shift points by MPH or RPM Support for Tap Up/Tap Down Transmission's Secondary Shift Mode If you currently have a Terminator X ECU upgrading to a Terminator X Max ECU can be easily done by plugging your main harness into the Max ECU and re uploading your existing calibration
Terminator X V3 Software is not compatible with Terminator X V1 or V2 ECU Firmware. To use V3 software with an older ECU version, the ECU and handheld MUST be updated to V3 Firmware. Opening a Terminator X V1 or V2 calibration with Terminator X V3 software, will update the calibration from V1 or V2 to V3. A V3 calibration cannot be loaded into a V1 or V2 ECU. A Terminator X V1 or V2 calibration cannot be used in a Terminator X ECU with V3 Firmware. The 3.5" TSLCD can be used to update the ECU the Calibration from V1 or V2 to V3 when using Handheld Firmware V3 Build xx (tslcd35-terx.3.0.xx.fwu) or later.
Features:
- Harness Kit Includes; Main Power Harness, LS1 Main Harness V-8 Injector harness
- Simple Installation
- Works with HP or Dominator ECU's
Details:
- Harness Application: LSX
Links
EFI selection chart
Instruction Sheet
Description
Description
for use with Terminator X MAX ECU's, requires Terminator X V3 Build 100 or later firmware.
Overview
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 Terminator X V3 Software provides the ability to dial in Torque Management to optimize the desired shifting characteristics when using a 6L80/90E Transmission. Terminator X V3 software also allows a user to control the Secondary Shift Mode within the Transmission TCM and allows use of Tap Up/Down Shifting. Within Terminator X V3 PC Software o Virtual Torque Management Tables o Virtual TPS Tables to dial in shift characteristics regardless of engine o DBW and Timing torque reduction tables to create smooth shifts Within the Holley EFI OBDII Transmission Tuning Handheld o Ability to read and clear TCM fault codes o Ability to raise and lower shift points by MPH or RPM Support for Tap Up/Tap Down Transmission's Secondary Shift Mode If you currently have a Terminator X ECU upgrading to a Terminator X Max ECU can be easily done by plugging your main harness into the Max ECU and re uploading your existing calibration
Terminator X V3 Software is not compatible with Terminator X V1 or V2 ECU Firmware. To use V3 software with an older ECU version, the ECU and handheld MUST be updated to V3 Firmware. Opening a Terminator X V1 or V2 calibration with Terminator X V3 software, will update the calibration from V1 or V2 to V3. A V3 calibration cannot be loaded into a V1 or V2 ECU. A Terminator X V1 or V2 calibration cannot be used in a Terminator X ECU with V3 Firmware. The 3.5" TSLCD can be used to update the ECU the Calibration from V1 or V2 to V3 when using Handheld Firmware V3 Build xx (tslcd35-terx.3.0.xx.fwu) or later.
Features:
- Harness Kit Includes; Main Power Harness, LS1 Main Harness V-8 Injector harness
- Simple Installation
- Works with HP or Dominator ECU's
Details:
- Harness Application: LSX
Links
EFI selection chart
Instruction Sheet
Item Specifics
Item Specifics
Have a Question?
Crafting the Perfect Product Description: A Guide for Retailers
In the competitive landscape of retail, effectively describing your products is crucial for attracting customers and driving sales.
Know Your Audience:
Before diving into the specifics of your product, it's essential to understand your target demographic. Consider their preferences, needs, and pain points. Tailor your language and tone to resonate with them effectively.
Clearly outline the unique features and functionalities of your product.
Highlight Key Features:
Highlight what sets it apart from competitors and why it's worth purchasing. Use bullet points or short paragraphs to convey this information concisely.
Powering Your Potential: Where Innovation Meets Convenience!
-
Focus on Benefits:
A well-crafted product description not only informs potential buyers about the features and benefits of your offering but also captivates their interest and compels them to make a purchase.
-
Know Your Audience:
Testimonials
Great Selection and Fast Shipping!I recently purchased a new laptop from this online electronics store, and I couldn't be happier with my experience. The website had a wide selection of products to choose from, and the ordering process was seamless. My laptop arrived earlier than expected, and it was well-packaged to ensure its safety during transit. I highly recommend this store to anyone in need of quality electronics.
- Sarah Johnson
I recently purchased a new laptop from this online electronics store, and I couldn't be happier with my experience. The website had a wide selection of products to choose from, and the ordering process was seamless. My laptop arrived earlier than expected, and it was well-packaged to ensure its safety during transit. I highly recommend this store to anyone in need of quality electronics.
- Sarah Johnson
Excellent Customer Service!I had an issue with my order, and I contacted the customer service team for assistance. I was pleasantly surprised by their prompt response and willingness to help resolve my issue. They were courteous and professional throughout the entire process, and they went above and beyond to ensure my satisfaction. Kudos to the customer service team for their exceptional service!
- David Smith
I had an issue with my order, and I contacted the customer service team for assistance. I was pleasantly surprised by their prompt response and willingness to help resolve my issue. They were courteous and professional throughout the entire process, and they went above and beyond to ensure my satisfaction. Kudos to the customer service team for their exceptional service!
- David Smith
Best Prices Around!"I've been shopping for a new smartphone, and I found the best deal on this online electronics store. Not only did they offer competitive prices, but they also had discounts and promotions that made my purchase even more affordable. The checkout process was straightforward, and my order arrived on time as promised. I'll definitely be coming back for my future tech needs.
- Emily Brown
"I've been shopping for a new smartphone, and I found the best deal on this online electronics store. Not only did they offer competitive prices, but they also had discounts and promotions that made my purchase even more affordable. The checkout process was straightforward, and my order arrived on time as promised. I'll definitely be coming back for my future tech needs.
- Emily Brown
Impressive Product QualityI recently purchased a camera from this online store, and I'm blown away by the quality of the product. It exceeded my expectations in terms of performance and durability. The website provided detailed product descriptions and reviews, which helped me make an informed decision. Overall, I'm extremely satisfied with my purchase and would highly recommend this store to others.
- Michael Anderson
I recently purchased a camera from this online store, and I'm blown away by the quality of the product. It exceeded my expectations in terms of performance and durability. The website provided detailed product descriptions and reviews, which helped me make an informed decision. Overall, I'm extremely satisfied with my purchase and would highly recommend this store to others.
- Michael Anderson