This is a Consent Agreement and Final Order (CAFO) between US EPA and Car Sound Exhaust System, Inc., d/b/a MagnaFlow Exhaust Performance (Respondent) of Oceanside, California, for Respondent's alleged violation of the Clean Air Act (CAA) regulations concerning motor vehicle engines. Respondent agreed to pay a civil penalty of $612,849 to settle the matter, and certifies that it is no longer manufacturing, selling, or offering for sale the parts listed in Attachment 1 of the CAFO, or of any motor vehicle parts or components which do not comply with the CAA.