GMC Sierra 1500 Tune.
We track 5 GMC Sierra 1500 tunes from 4 brands, $399 to $599.99 as recorded 2026-10-04, each at its lowest price across the retailers we compare. 3 of them publish a horsepower figure, labeled by where the number came from.
Engine computer reprograms, the biggest single gain per dollar on a turbo truck.
Questions about this category
5 parts
GMC Sierra 1500 or Chevy Silverado 1500?
The GMC Sierra 1500 and the Chevy Silverado 1500 are closely related trucks, and many parts are sold for both, so each one gets its own page here. Of the 5 tunes on this page, 4 are also listed for the Chevy Silverado 1500 and 1 is listed for the GMC Sierra 1500 only. The Chevy Silverado 1500 page lists 8 that are not on this one. Check the fitment notes on each part before you order, because engine and trim still matter.
Gains shown are manufacturer claims, labeled community estimates, or independent tests, as tagged on each part. See the full catalog to filter by engine, drivetrain, and more, or the price index for what this category typically costs.