Concerning Mufflers and DBA

Concerning General Rules, MISC page 8:

“Mufflers are mandatory and must control the noise level to 95 DBA or less.”

Effective immediately, all Divisions will have a maximum allowable DBA of 98 or less. Failure to comply with the 98 DBA maximum will result in the following penalties to drivers:

  • 1st Offense: 10 point penalty
  • 2nd Offense: 20 point penalty
  • 3rd Offense or more: Disqualification

Questions about this Rule modification can be directed to

NASCAR Advance Auto Parts Series NASCAR Home Tracks ARCA Menards Series West