Duramax Tuners & Tune Files

Our GM Duramax tuner and tune file collection includes both handheld and bench-flash devices featuring bright, easy-to-read displays and user-friendly controls. Each unit arrives preloaded with expertly mapped software for DPF/DEF elimination, EGR bypass, and speed-limiter recalibration. You’ll enjoy on-the-fly tuning adjustments, one-button code scanning and clearing, plus over 20 live digital gauges for real-time engine monitoring. Professionally tuned to safely add up to 200 HP and 450 lb-ft of torque, these tuners and files deliver the durable performance boost your Duramax demands.