AEM Hybrid Air Intakes are direct-fit intakes for select Honda and Acura models with engine swaps. They are designed, tuned, and dyno-tested to fit specific cars with specific engines. These intakes usually include an oversized AEM Dryflow synthetic washable air filter for high outstanding flow, filtration, and performance while allowing easy oil-free cleaning. Most AEM hybrid intake systems use three-inch diameter mandrel-bent aluminum intake tubes and high quality hardware designed to reduce restriction and intake temperature. The design and components of each intake system vary so consult the installation instructions for more information on the contents of each part number. Since AEM hybrid intakes are designed for cars with engine swaps, they are intended for off-road use only and are not 50-state legal. Hybrid Air Intakes cannot be sold in California. They are not legal for use in California or other states adopting California emission standards.