Gladiator Tune.

We track 3 Gladiator tunes from 1 brand, $462 to $581 as recorded 2026-09-07, each at its lowest price across the retailers we compare. 1 of them publishes a horsepower figure, labeled by where the number came from.

Engine computer reprograms, the biggest single gain per dollar on a turbo truck.

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.