ID Speed Shop Single Custom Tune, Silverado 1500 5.3L (tuner/device sold separately)
Fits 2019-2023 5.3L V8
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Price tracked 6 times since Jul 31, 2026 across the stores we check daily: low $445, high $445, currently $445.
A custom tune file written for a 2019-2023 5.3L Silverado and delivered as a file, not as hardware. ID Speed Shop adjusts air/fuel ratio, ignition timing and cam timing, and you choose a Street, Sport, Performance or Towing calibration.
why this one — The choice of four calibrations is the reason to pick this one, since you can order it biased toward towing instead of taking a single all purpose file. It costs more than the 5 Star tune and still needs a DiabloSport or HP Tuners device you already own. This part number is Silverado only, so Sierra owners have to order ID Speed Shop's separate Sierra version.
Product page describes the tune as optimizing air/fuel ratio, ignition timing, and cam timing to "squeeze out extra power" but gives no specific figure for this SKU.
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 how we check a price and our affiliate disclosure.