Calibrated Power | 2024-2026 GM 6.6L L5P Duramax Custom ECM Emission Compliant Tuning & Unlock Package

This product provides custom emission-compliant tuning for L5P engines, increasing horsepower and torque while maintaining emissions standards.

• The description claims up to +110 HP and +330 ft-lbs of torque.
• The description claims improved pedal response and reduced soot compared to box programmers.