Customers that own a Chevy Silverado or GMC Sierra with the 6.6L V8 L5P turbodiesel Duramax engine under the hood can upgrade with a substantial power boost via The Pulsar V3 module from Edge, as featured in the following brief video from Holley.
The Pulsar V3 module from Edge is available for 2017 through 2021 Chevy Silverado HD and GMC Sierra HD 2500 / 3500 pickup trucks equipped with the 6.6L V8 L5P turbodiesel Duramax, which, in factory trim, is rated at 445 horsepower at 2,800 rpm and 910 pound-feet of torque at 1,600 rpm. However, as highlighted by this feature video from Holley, The Pulsar V3 module adds upwards of 136 horsepower and 291 pound-feet of torque, as measured on a dyno.
In order to achieve these impressive gains, The Pulsar V3 module controls four essential engine parameters, including the injection pulse width, injection timing, fuel rail pressure, and airflow. The Pulsar V3 module offers users five power levels to choose from, with increasing peak power figures, up to the 136 horsepower and 291 pound-feet of torque, as mentioned previously.
The gains are substantial, and not only give the 6.6L V8 L5P turbodiesel Duramax engine meatier power and torque curve, but also significantly improved acceleration. Per Holley’s testing, the factory tune yields a quarter mile time of 14.93 seconds at 92.32 mph, while the max power level with the new module yields a quarter mile time of 14.17 seconds at 98.44 mph.
Customers can use the factory GM steering wheel controls to adjust the power levels as desired. Additionally, The Pulsar V3 module allows users to tune other aspects of the onboard computer, including the speed limiter, TPMS, tire size adjustments, axle ratio adjustments, engine code clearing, throttle sensitivity, and more. There’s also a relearn feature that enables the Allison transmission to adapt to the new power levels.
Pricing for The Pulsar V3 module is set at $793.76, per Holley’s website (“Holley Days Price,” suggested retail price of $980).