2017-2019 Chevy Silverado GMC Sierra L5P 6.6 Duramax Diablosport Pulsar Tuner

Tune Your L5P 6.6 Duramax In Minutes with No PCM Swap!

Pulsar is a brand new, innovative invention that has been engineered to keep your customers stock PCM on the Jeep with no flash tuning, or removal of the PCM itself, required. Enjoy Pulsar as a performance programmer, calibration tool, and throttle sensitivity booster all in one easy-to-use device. Pulsar is an in-line computer that connects directly to the vehicles computer with no additional wiring harness required. No PCM swap required! Pulsar, PN 22400, is a brand new, innovative product that has been engineered to keep your PCM on the vehicle with no flash tuning, or removal of the computer itself, required. Pulsar is an in-line computer that connects directly to the vehicle’s PCM, with no additional wiring harness. Duramax performance tuning has never been this easy!


Up to 90 HP & 156 lb-ft torque
Change 5 power levels on-the-fly using +/- cruise control buttons
Connects directly to ECU in engine compartment providing instant power
Built-in throttle sensitivity control for improved throttle response
High-idle user settings to adjust RPM during ideal
Transmission slip backdown – power will decrease if slip is detected
EGT Backdown – power will decrease if EGTs exceed set limit
Provides the ability to recalibrate the speedometer for wheel/tire changes
Simple installation with no complex wiring harness or ECU flashing required
Ships with update cable

The part number for this item is Diablosport 22400 and it fits 2017-2019 Chevy Silverado GMC Sierra L5P 6.6 Duramax models.