TCM Tuning Service for GM 8-Speed (8L90 / 8L45 / T87A/T93) Transmissions

Take full control of your GM 8-speed automatic transmission with our professional TCM (Transmission Control Module) tuning service — engineered for performance enthusiasts, daily drivers, and modified vehicles alike. Our custom calibration unlocks improved shift behavior, torque handling, and overall drivability to unleash the true potential of your GM transmission.

Whether you own a Chevrolet Silverado, GMC Sierra, Camaro, Corvette, Tahoe, Suburban, Yukon, CTS-V, or other GM equipped with the 8-speed transmission, our expert transmission tuning delivers meaningful gains across the board.

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What This Calibration Improves

Our GM 8-Speed TCM tune includes:

• Enhanced Shift Speed & Smoothness – Faster, more precise gear changes with refined engagement for both street and performance use.

• Optimized Torque Management – Raise the transmission’s torque limits, allowing more power to reach the wheels without unnecessary cutbacks.

• Improved Launch & Acceleration – Sharper throttle response and stronger takeoff dynamics.

• Adaptive Learning Support – Retains the transmission’s ability to learn and adapt while maintaining enhanced performance.

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How It Works

Our Calibration engineers use advanced tuning software and calibration techniques to tailor this service for your exact vehicle setup — factoring in engine mods, fuel type, and driver intent. Every tune is built with safety, reliability, and repeatability as top priorities. 

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Why Choose Our GM 8-Speed TCM Tune

• Industry-grade tuning expertise with 8-speed GM transmissions.

• Noticeable performance gains without compromising day-to-day drivability.

• Works seamlessly with existing ECU performance upgrades.

• Clear upgrades for truck, SUV, and sport driving demands.

• Remote service options available for global customers.

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Upgrade Your GM Today

Whether you’re chasing quicker shift times, stronger launches, or better towing performance, our GM 8-speed TCM tuning service gives your transmission the next level of refinement it deserves.