Bully Dog GT Tuner (40417)
Fits 2014-2016 6.2L V8
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
Price tracked 8 times since Jul 29, 2026: low $399, high $643.50, currently $399.
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, loaded through a handheld device with a built-in gauge display.
why this one — This is Bully Dog's dedicated 6.2L Silverado tuner (2014-2016 only - a narrower span than the 5 Star/Livernois options above, which run through 2018). GMC Sierra owners have a separate Bully Dog SKU (BDX Tuner 40470) sold under the same 2014-2016 6.2L fitment - not the same part number, so not merged into this row.
AmericanTrucks listing states "Enhanced Horsepower, Torque, Throttle Response" and "Higher Fuel Mileage" but publishes no specific number.
Questions about this category
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.