2016-2022 LWN Duramax 6L50 Transmission EFI Live TCM Tuning

The 6L50 transmission mated with the 2.8L Duramax engine has been around for some time. When driving a stock 2.8L LWN, you'll notice how out of sync your 2016-2019 Chevy Colorado or GMC Canyon throttle pedal and acceleration rate feels. The OEM tuning in the 6L50 waits too long before utilizing torque converter lockup. It also leaves MPG on the table by shifting late and running unnecessarily high RPM. With Calibrated Power's TCM tuning, they take advantage of the torque made by this engine. Shifting the transmission sooner and getting the torque converter locked up to raise powertrain efficiency and give you the best MPG possible. This custom TCM tuning also electronically controls line pressure and shift timing to give firmer shifts and make sure the trans has enough hydraulic pressure to hold those clutches tight with the new found torque.

What’s the difference between Mild and Aggressive Transmission Tuning?

Smooth Shift Points are the best choice if you . . .

• Want a similar feeling shift schedule to stock
• Have a near-stock truck with stock tire size and stock turbo 
• Installed a Box Tuner
• Use your truck as a daily commuter
  
• Want to get the best fuel economy possible

Aggressive/Elevated Shift Points are the best choice for if you . . .

• Have an upgraded turbocharger
• Run Larger than Stock tires
• Prefer higher RPM operation or holding the gear longer
• Installed custom engine (ECM) tuning 

 Why do you need TCM Tuning?

• Works with any ECM Tuning to provide smooth shifting and superior driveability
• Torque converter lockup strategy helps put power to the ground when you need it most
• Improves clutch holding capacity with increased line pressure
• Makes your truck feel more powerful
• Prevents short-shifting in performance applications
• Ensures your engine is operating within its preferred rev range / power band

TCM Tuning is especially important for trucks with:

• Any ECM Tuning, Box Tuner, or Throttle Booster
• Larger tires
• Modified turbo(s)
• Built transmission
• Any modification that impacts operating RPMs

Towing & Performance

• Makes full use of the wider torque curve provided by ECM Tuning
• Keeps your truck in its power band when lugging up a grade
• Improved Acceleration - Quicker shifts mean less time between gears and more time putting power to the ground
• Optimizes the benefits of your other aftermarket performance parts