CALIFORNIA SPECIFIC EMISSIONS NOTICE

California laws prohibit (in most cases) the use of any aftermarket product whose installation requires the removal of any emissions control related components as regulated by the California Air Resources Board (www.arb.ca.gov). Three classification levels of emissions related aftermarket products define which aftermarket parts can be sold legally in the state of California:

1. Replacement Parts – parts that have the same function and affect on emissions as the parts they are replacing. This means that if a vehicle was not originally equipped with a catalyst and all other emissions related controls that were connected (such as oxygen sensors) are reconnected, then the part is considered a Replacement Part. If the vehicle has a catalyst and the installation of the part does not remove the catalyst, and all other emissions related controls are reconnected, then this is considered a replacement part. Slip on mufflers in applications whereby the catalyst is not contained in the original muffler is an example of a replacement part. Full exhaust systems installed on vehicles that did not originally contain a catalyst and whereby the design allows the reinstallation and original function of any other emissions control related components are also considered replacement parts.
2. Modified Parts – parts that alter the emissions control related performance from the original part they are replacing, These parts may have catalysts in them but they perform differently from the original equipment part or they may require the alteration or elimination of other emissions related control components such as oxygen sensors. These parts must obtain an Executive Order (“EO”) from the California Air Resource Board (C.A.R.B.) to confirm their functional compliance in order to be sold legally in California.
3. Competition or Racing Vehicle Parts – parts that are used exclusively in competition on race only vehicles. These parts do not require approval as long as they “are not used on public highways”. Labeling a product as being for “Racing Only” or “Closed Course Competition” is not sufficient for it to be included under this classification. It must be a competition vehicle and must not be used at any time on a public highway.

All Area P Exhaust Systems and/or Slip-Ons are specifically designed and designated as/for “Competition and Racing Vehicles Only”. Any/All model application pictures shown are for reference only and solely intended for Competition and Racing Vehicles only and must not be used at any time on a public road/highway.

http://www.mic.org/downloads/MIC-FAQ-CA-Aftermarket-Exhaust-Systems-042712.pdf