Livernois Motorsports MyCalibrator Touch Tuner
Fits 2019-2020 5.3L V8
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Price tracked 7 times since Jul 31, 2026: low $599.99, high $599.99, currently $599.99.
where to buy · 2 retailers tracked
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.
Livernois Motorsports' own LPP611105 page states "gains of over 29WHP and 34WTQ on the 5.3L" using the 93-octane performance tune - manufacturer's own claim, not cited as an independent/third-party dyno test.
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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.