The infamous Honda Civic… this car has been around for as long as most of us can remember. Honda first introduced the Civic as a two-door coupe in the early 70’s and ever since its release the Civic has been one of the best-selling compact cars of all time. Fast-forward almost 40 years and the Civic attracts a variety of drivers. You can see the Civic being driven by anyone from young adults that recognize its sporty side to elderly folks that want a car with good MPGs.
Well, a small displacement engine such as the Civic’s 1.8-liter four cylinder that gets good gas mileage (~29 MPG) often leaves the driver with a desire for more power. In the case of the Civic, there happens to be additional horsepower ready to be unleashed. AEM recognized the car’s need for an air intake system and designed a Cold Air Intake System for the 2006-09 Honda Civic with the 1.8-liter engine (part number 21-686C). During the design phases, AEM was able to not only design a more efficient air intake system that looks and sounds great but also squeeze additional horsepower from the 1.8-liter powerplant.
The new AEM 21-686C Cold Air Intake System completely replaces the restrictive factory intake system of the Honda Civic. By replacing the factory airbox and air filter with a mandrel-bent aluminum intake tube that optimizes airflow and filtration more power was gained. AEM’s’s dyno tests have recorded a 4 horsepower increase at 3,800 RPM on the 2006-09 Honda Civic 1.8L. This increase in horsepower brings the stock baseline power of 98 wheel horsepower up to 102 wheel horsepower with the AEM 21-686C Cold Air Intake System installed.
The 21-686C intake routes an AEM Dryflow 21-201DK air filter in the wheel well where the air filter can draw cool air safely. The 21-201DK air filter features a flange inside diameter of 2.5-inches (64mm) and an overall height of 5.125-inches (130mm). The oil-free DRYFLOW technology is extremely durable and easy to clean.