2024–2026 L5P Duramax Tuning | AITP

AITP | 2024–2026 L5P Duramax Tuning

Enhance the performance and drivability of your 6.6L L5P Duramax with tuning solutions from AITP. Whether you're looking for a single power level, multiple selectable power levels, or improved transmission performance, AITP offers tuning options tailored to your needs.

Available Tuning Options

ECM Single Tune

The AITP E42 Single Tune allows you to select one power level based on your performance goals. Choose from six available calibrations ranging from 50HP to 200HP over stock.

• MAP 1: +50 HP
• MAP 2: +100 HP
• MAP 3: +125 HP
• MAP 4: +150 HP
• MAP 5: +175 HP
• MAP 6: +200 HP

Note: This package includes one selected power level, not all six.

ECM SMC Tuning

The AITP SMC tuning package provides six selectable power levels, allowing you to adjust your truck's performance to match your driving preferences.

• MAP 1: 0 HP – Hiss
• MAP 2: +50 HP – Rumble
• MAP 3: +100 HP – Rumble
• MAP 4: +150 HP – Rumble
• MAP 5: +175 HP – Rumble
• MAP 6: +200 HP – Rumble + LBF

Note: AITP specifies SMC tuning for 2024–2025 L5P Duramax applications. Confirm compatibility for 2026 vehicles before ordering.

Global B TCM Tuning

The AITP Global B TCM tune is designed for 2024+ L5P Duramax trucks equipped with the Global B transmission control system.

This calibration addresses undesirable characteristics of the factory transmission tuning to improve overall drivability and shift performance.

• Improved transmission drivability
• Firmer, more consistent shifts
• Revised torque converter behavior during shifts
• Improved overall transmission response

Important: Customers must provide an unlocked TCM file for tuning. TCM unlocking is not included unless separately specified.

Vehicle Compatibility

• Make: Chevrolet / GMC
• Engine: 6.6L L5P Duramax Diesel
• Model Years: 2024–2026 (package-dependent)
• ECM: E42
• TCM: Global B

Important Ordering Information

• Select your desired tuning package before checkout.
• Single Tune customers must select their preferred power level.
• SMC tuning availability varies by model year.
• TCM tuning requires a customer-provided unlocked file.
• Additional hardware, licensing, or unlocking services may be required depending on the selected package.
• All tuning products are subject to vehicle compatibility verification.