Livernois Motorsports MyCalibrator Touch Tuner
Fits 2019-2020 5.3L V8
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A handheld touchscreen tuner that plugs into the OBD-II port and loads Livernois' own calibration onto the truck, with 87, 91 and 93 octane files to choose from.
why this one — One of the few tuners here with a published number attached: Livernois claims over 29 wheel horsepower and 34 wheel torque on the 5.3L with the 93 octane file. Fitment is the catch. On 2019-2020 trucks it only works with the 6 speed transmission, and most 5.3L Silverados those years came with an 8 or 10 speed, so confirm what is in yours before you buy. It is also not sold in California.
Gain shown is a manufacturer claim, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.