2017-2022 GM 6.6L L5D Duramax | Engine Tuning by PPEI

CARB EO Pending

Gain 145+ HP and increase torque. Maximize efficiency and drastically enhance your truck’s throttle response.

• Level 1: Stock
• Level 2: +30 HP
• Level 3: +65 HP
• Level 4: +120 HP
• Level 5: +145 HP