LTXTuning.com on a Supercharged 6.2L Silverado Dyno!

Callaway 540hp Supercharged 6.2L 4x4 Silverado: Custom Harchelroad Motors Engine Management Calibration by 06x6spdGTO/LTXTuning Dyno tuned on a MD1100 @ Harchelroad motors... Imperial Nebraska

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