DIESELR EFI Live Transmission Tune File (2019-2024 Cummins 6.7L *AISIN ONLY*)

The DIESELR EFI Live Transmission Tune File (2019–2024 Cummins 6.7L AISIN) is engineered for Cummins owners who expect more than stock limitations. This transmission tune keeps your AISIN gearbox fully aligned with your ECM tuning, delivering stronger shifts, improved throttle response, and precise power transfer.

Unlike factory programming that short-shifts and lugs, this tune refines shift logic to keep your Cummins 6.7L in its power band. Whether towing heavy, daily driving, or running a bigger turbo setup, it eliminates the weak points that cost you efficiency and drivability.

Key advantages:

• Direct EFI Live flash with AutoCal device
• Corrects the notorious 1000 RPM lugging issue common in stock AISIN trucks
• Enhances towing control with confident gear holding under load
• Delivers quicker, smoother shifts across all conditions
• Designed for trucks with upgrades, larger tires, or aggressive ECM tuning
• Extends torque utilization for maximum pulling power and drivability

With DIESELR AISIN transmission tuning, you get the reliability of factory integration with the performance of a custom-built calibration. This file is proven, tested, and built to withstand real-world abuse.

Backed by Dieselr’s industry-leading support, this transmission tune ensures your truck delivers the driving experience it should have had from the start.