DuramaxTuner DT1120010008000 Transmission Tune Only for EFI Live Spade Duramax | 04.5-05 GM 6.6L Duramax 2500HD / 3500HD LLY

Recommended Transmission Tuning

Why do you need TCM Tuning?

• Works with ECM Tuning to provide smooth shifting and superior drive-ability
• Required for the best possible drive-ability
• TCM Tuning in the best tool to ensure your engine is operating within its preferred rev range

TCM Tuning is especially important for trucks with:

• Custom ECM Tuning
• Larger tires (35+)
• Modified turbo(s)
• Built transmission
• Any modification that impacts operating RPMs

Towing

• Use the wider torque curve provided by ECM Tuning
• Keep your truck in its power-band when lugging up a grade

Performance

• Optional 2nd or 3rd Gear Start for competition applications
• Optimize your aftermarket turbocharger performance

ZF6 Manual Transmission While the ZF6 Manual Transmission has no electronic controller for us to Calibrate or Tune, we do build our ECM Tuning to work specifically with them. We understand where to bring the power on in the throttle pedal to keep you shifting smooth and make more power when you need it.