Here in California, the California Air Resources Board (CARB) restricts cold-air intake equipment. Any recommendations for specific cold-air intake equipment that receives CARB exemption? The states that have adopted the California standards are: Connecticut, Delaware, Maine, Maryland, Massachusetts...

Are there custom cold-air intake ducts for the C-30 Turbo models?

Although I do not know the answer, you do not specify which car you have... Please list your model year, model and type ('04 S40 T5, etc.). A turbo car would make more of a difference depending on filter than a non-turbo car. My vehicle is a 2009 Volvo C30 Turbo. How does outside air-flow through t...

Hello,

Anybody try Pentius, Amsoil brands of air-filters? How have these brands of filters boosted fuel economy?

Thank-you