Are Doug Thorley Headers Legal in California? | Legal Expert Answers
25/08/2022
Are Doug Thorley Headers Legal in California Doug Thorley aftermarket modification enthusiasts increase performance horsepower vehicles. Legality Doug Thorley California topic and confusion car owners. The Legalities of Using Doug Thorley Headers in California California, vehicles comply state’s emissions regulations. California Air Resources Board (CARB) standards emissions equipment modifications, aftermarket parts approved CARB legal […]