Injen 99-00 Civic Si Polished Cold Air Intake

If you're looking to get more power out of your 1999-2000 Honda Civic Si, this Injen RD Series cold air intake is a solid choice. It's designed to pull cooler, denser air from outside the engine bay, which helps your engine make more power. You'll notice an improved throttle response and a more aggressive exhaust note when you step on the gas.

The intake tube is made from mandrel-bent 6061-T6 aluminum, which means it has a smooth, uninterrupted path for air to flow through, reducing restrictions compared to the stock intake. This polished finish also looks great under the hood. It comes with a serviceable SuperNano-Web dry air filter that offers good filtration and allows for plenty of airflow. Injen has also made sure that this intake maintains safe air-fuel ratios, so you don't have to worry about tuning right away.

This kit includes everything you need for installation, including the tubing, filter, and hardware. It's made in Pomona, California, and backed by Injen's limited lifetime warranty.