Performance & TuningQuestionCommunity Starter

2021 Chevrolet Silverado 1500 — dyno numbers changed more than the car feels

ShopEnthusiast444Community StarterApr 20, 20262021 Chevrolet Silverado 1500 LTZ 6.2Florida
This started as a small annoyance and I finally decided to track it down. 2021 Chevrolet Silverado 1500 LTZ 6.2, about 71,000 miles. Two dyno sessions on different days show a noticeable power difference, but the car feels the same. How much can temperature, correction method, tire pressure and dyno type move the result?
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