2006 - 2007 GM 6.6L LBZ Duramax | Engine Tuning by PPEI RZR TURBO XP 4S Velocity These are conditions when greater

These are conditions when greater brake holding performance is required

offers superior performance without risk

trails with complicated obstacles

The camshaft still has good torque and throttle response off idle could be trail friendly

2006 - 2007 GM 6.6L LBZ Duramax | Engine Tuning by PPEI RZR TURBO XP 4S Velocity These are conditions when greaterCARB EO Pending Gain 200+ HP over stock, tow your toys effortlessly, and rapidly increase acceleration. Tuning engineered for optimal efficiency and the best potential fuel economy! STOCK TRANS Level 1: + 30 HP Level 2: + 60 HP Level 3: +100 HP Level 4: +120 HP Level 5: +150 HP BUILT TRANS Level 1: + 30 HP Level 2: + 60 HP Level 3: +120 HP Level 4: +160 HP Level 5: +200 HP This tuning package can be installed using an EFILive AutoCal V2, FlashScan V2,