“Every motor vehicle used in a race or contest of speed at a facility located within three-quarters of a mile of an occupied residence shall at all times be equipped with an adequate muffler and exhaust system to prevent any excessive or unusual noise, provided the residence was constructed prior to the construction of such facility.”
Of course though, before you get too upset, this was taken from the June 1972 issue of Super Stock & Drag Illustrated penned by then editor Jim McCraw. I doubt that “Bill” is even on the books today.
https://dragracingedge.com/the-blog/mufflers/