2017 - 2023 GM 6.6L L5P Duramax | Engine Tuning by PPEI

CARB EO Pending

Gain 155+ HP and increases torque. Maximize efficiency and drastically enhance your trucks throttle response. 

• Level 1: +70 HP
• Level 2: +100 HP
• Level 3: +125 HP
• Level 4: +155 HP