For Honda Civic/Del Sol Black Flared Pipe Intake Induction System with Blue Air Filter - EG EH EJ EM 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 (a.k.a. Whale Penis), 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