Livernois Motorsports MyCalibrator Tuner (LPP611105)
Fits 2014-2018 6.2L V8
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Price tracked 13 times since Jul 26, 2026 across the stores we check daily: low $599.99, high $649.99, currently $599.99.
where to buy · 2 retailers tracked
A tune is a reprogram of the truck's engine computer (ECU) that adjusts fuel, timing, and shift settings. This one is a self-contained handheld device (MyCalibrator) you plug into the OBD2 port yourself.
why this one — Livernois publishes an actual dyno-style gain number specific to the 6.2L (over 27whp/47wtq) rather than vague marketing language, and confirms both Chevrolet Silverado and GMC Sierra 6.2L (2014-2018 High Country/Denali trims specifically). Note: this same device also supports the 5.3L across 2014-2020, but this row tracks the 6.2L-specific application and gain numbers only.
Livernois Motorsports' own product page states "gains of over 27WHP and 47WTQ on the 6.2L.with 93 octane fuel" - manufacturer-stated, not independently dyno-verified by RideBuildList.
Item not for sale in California.
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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 how we check a price and our affiliate disclosure.