Flashpaq for 2019-2021 GM 1523 - 2847-S

This device will require your ECM to be shipped to us for unlocking, prior to performance flashing. Purchase includes the cost to unlock and Next Day Air return shipping.

The much anticipated Flashpaq tuning for 2019-2021 Silverado and Sierra is finally here! Available for 5.3L and 6.2L applications Flashpaq tuning offers up to an additional 45-horsepower!* The all-new GM Flashpaq performance programmer (PN 2847-S) comes pre-loaded with tunes developed specifically for daily driving, towing, and performance enthusiasts. Our Mileage XS, Tow, 87 Octane, 91 Octane and 93 Octane tunes offer incredible torque gains throughout the RPM range with the improved drivability youve come to expect from Superchips. This device includes our ECM Send-In process, which will require your trucks ECM to be removed and shipped to us for unlocking. Once our specialists create the internal ECM modifications, and it will be returned to you for re-installation into the truck, where you can then tune with your choice of calibration within the Flashpaq device. The purchase of the Flashpaq 2847-S includes the cost of the ECM Unlock and Overnight return shipping of your ECM to limit downtime to as little as three days. Our ECM modifications are safe, reliable and compatible with GM dealer tools and flashes. So, your local dealer can still interact with your truck after youve returned your Flashpaq tuning to factory settings. *6.2L applications