PDI Big Boss Performance TunerAvailable for: Cummins, Caterpillar, Detroit, and Paccar Engines Key Benefits: Industry Leading Horsepower and Torque Increase Fuel Mileage Improvement Striking Gauge and Monitoring Options Diagnostic Fault Code Troubleshooting Speed Limiter Adjustment Tire Size and Gear Ratio Adjustment DPF Regen and Restriction Tests* Stay Up to Date over Wifi The BIG BOSS Performance Tuner brings all the benefits of tuning without all the hassle. Simply plug it
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