DNA Motoring AIP2HC92RD Cold Air Intake System [For 92-00 Honda Civic del sol] Unique Flared Intake Tube Design Helps Engine to Draw In More and Colder Air Resulting in Better Throttle Response and Higher Explosive Horsepower Output Special Piping Design, Resulting in Colder Air Input than Regular Short Ram; but still Free from the Risk of Hydro-Lock Improves Up to 95% Filtration Efficiency; Increases 5 - 10 Horsepower, 6 - 8% of Torque, and Improve the Gas Mileage Intake Inlet/Outlet Size: 4.25"/3" / Piping Thickness: 5mm