2020-2023 GM 2500/3500 6.6 Gas Predator

This kit includes the Predator 2 handheld programmer, DiabloSport’s exclusive Locksmith device, and ECM harnesses—eliminating the need to remove your ECM. Once unlocked, the Predator 2 gives you access to dyno-tested performance tunes that deliver up to 28 rear-wheel horsepower and 50 rear-wheel torque gains over stock. The result is stronger acceleration, more pulling power, and a truck that feels more responsive in every situation.

Features

• 28 RWHP/50 RWTQ over stock on 93 octane fuel
• Front/Rear TPMS Threshold Adjustment
• Transmission Adaptive Relearn
• Crank Position Sensor Relearn
• Control Intake Filter Monitor system
• 20-23 GM 2500/3500 6.6 L8T
• Correct Speedometer for Tire Size
• Set final drive ratio
• Adjust Rev Limiter
• Set Idle RPM in Drive/Neutral
• Remove Speed Limiter
• Adjust Throttle Sensitivity
• Recall Last Mode Setting

ECM Must be unlocked prior to using the Predator 2 to tune the vehicle. Once unlocked, the locksmith/harness is no longer needed.

Product Video

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Documentation

• Installation instructions — P2 Manual (PDF)