Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
So-called “upfitting” — adding sirens, lights, cages, auxiliary power — is typically performed by governmental fleet operations, independent repair facilities, or local dealers.
Source: https://jalopnik.com/nhtsa-says-you-must-have-been-imagining-that-exhaust-sm-1850017611