Transmission Controllers

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Take command of your vehicle's shift behavior with a dedicated transmission controller. Whether you're swapping a modern electronically controlled transmission into an older chassis, tuning for drag-strip consistency, or dialing in a tow rig, a standalone controller gives you direct access to shift points, line pressure, and torque converter lockup—without relying on a factory ECU.

What to look for when choosing a controller:

Standalone vs. piggyback: Some controllers fully replace the stock TCM, while others intercept and modify signals for incremental tuning.
Programmability: Look for user-defined shift tables, multiple tuning maps, and real-time adjustment via laptop or handheld tuner.
Compatibility: Confirm the controller supports your transmission model (e.g., 4L60E, 4L80E, 6R80, ZF 8HP, Allison, etc.) and your input signals (TPS, MAP, RPM).
Data logging and safeties: Onboard diagnostics, limp-mode overrides, and data logging help protect your build during tuning.
Hardware: Many kits include the main unit, wiring harness, sensors, and mounting hardware. Check what's included to budget for extras.

Browse our selection of transmission controllers to find the right match for your drivetrain project.

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Transmission Controllers

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