The AEM 24-6005C Dual Chamber Air Intake System is engineered to maximize horsepower and torque gains for specific Honda Prelude models by utilizing a patented dual chamber design. The restrictive factory air filter and air intake housing are replaced with this AEM dual chamber air intake system. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The sound your engine makes when accelerating is also modified to a fuller, more aggressive resonance allowing you to hear and feel the horsepower upgrade. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This air intake system was developed to accommodate the engine's factory emissions control devices including the engine breather hoses and water bypass hose. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is backed by AEM's Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the 24-6005C vehicle applications to determine the legal status for each vehicle.