GM 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 drivability—whether stock or modified.

What’s 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 condition
• Windows laptop with VCM Suite installed

Supported Transmissions

• 4L60E / 4L65E / 4L80E
• 6L80E / 6L90E
• 8L90 / 10L80

Select your transmission type during checkout.