Database Version
ABG_V2.9.4_STABLE
Chevrolet chip tuning performance data calculator
66-v8-397-hp-duramax-v8
Horsepower (HP)
Original397
Stage 1
440+43 HP
Stage 2
462+65 HP
Torque (NM)
Original1037
Stage 1
1100+63 NM
Stage 2
1155+118 NM
Max Component Potential (Stage 2)98.4% Efficiency