Holley EFI Terminator X Max Transmission Kit - GM 6L80/90
Type: Terminator X Max 6L80 | Fits: GM
Add GM 6L80/90E transmission control to any existing vehicle utilizing a Terminator X Max ECU. 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 ratios. 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
o Support for Tap Up/Tap Down and 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.
Features:
- Included TCM handheld tuner with integrated wizard is required for setup in conjunction with the Terminator X 3.5” Handheld. Terminator X V3 software to unlocks optional tuning parameters
- Plug and play with any engine controlled by a Terminator X Max ECU
- Supports Shift Mode, Tap Up/Tap Down, and Torque Management
- Four loose wires:
- Power (Red) - Supplies power to the transmission solenoids. This should be connected directly to the battery or a constant battery source capable of supplying 5 amps
- Ground (Black) - Connect to a good chassis/engine ground source
- Brake Switch (Light Blue/White) - Wired to the brake light switch. This must be installed to a 12V source (most brake light switches are).
- Park/Neutral Safety (Yellow) - Circuit for starter solenoid. When the transmission is in Park or Neutral, this Yellow Wire will be Grounded (-). When the transmission is in gear, this circuit will be open.
Specs:
- Brand: Holley EFI
- Category: Transmission
- Emission Code: 3
- Grade Type: Performance
- Part Type: Automatic Transmission Wiring Harness
- Product Type: Terminator X Max 6L80
- Sub Category: Automatic Transmission Components
Tech Resources:
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. 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 and the Calibration from V1 or V2 to V3 when using Handheld Firmware V3 Build xx (tslcd35-terx.3.0.xx.fwu) or later.
Tire Size Diameter = 26" - 38"
Gear Ratio = 3.23 - 5.13
Does not support 4WD
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Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
