Very interesting and great article except for this: "the resonator is now installed on the Chevrolet Silverado, the best-selling U.S. large pickup."Yes, this is normal. On both EcoBoost and Hybrids the resonator (used to be just before the tailpipe on early builds) was deleted in favor of the resonance patch seen here. All Mavericks going forward are built this way.
You can read more about this technology here.
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