Transmission Tuning – GM PlatformsGM Transmission Tuning Custom transmission tuning service for electronically controlled GM transmissions including 4L60E 80E, 6L80E 90E, and 8L90 10L80. Improve shift timing, shift scheduling, and drivabilitywhether stock or modified. Whats Included Shift point and firmness adjustments Torque converter lock unlock control Datalog based tuning support via email Requirements HP Tuners MPVI3 or RTD+ with applicable credits Vehicle in good mechanical
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