N.J. Stat. § 39:3-70
Current through L. 2023, c. 200.
Every motor vehicle having a combustion motor shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and no person shall use a muffler cut-out, bypass, or similar device upon a motor vehicle on a highway.
N.J.S. § 39:3-70