Injen 06-09 Civic Si Coupe & Sedan Polished Cold Air Intake

The intake tube on this Injen SP Series cold air intake is crafted from 6061-T6 aluminum, offering a smooth, uninterrupted path for air to reach your engine. This is a key design choice that helps your 2006-2011 Honda Civic Si breathe more freely, especially when you're asking for more power. Injen has been tuning intakes for a long time, holding several patents on their tuning process, which means this system is designed to work with your car's computer without needing additional tuning to maintain a safe air-fuel ratio.

You can expect noticeable improvements in horsepower and torque, with dyno tests showing gains of up to 11 hp and 12 lb-ft. of torque. The system includes a serviceable SuperNano-Web dry air filter, which offers a large surface area for excellent airflow and filtration. Beyond the performance, this intake also changes the sound of your engine, giving it a more aggressive tone under acceleration. It’s a well-built system that not only looks good under the hood with its polished finish but also performs well.

This kit comes with everything you need for installation, including the tubing, filter, and hardware, along with instructions. It's designed as a direct replacement for your stock air intake system, making the installation process straightforward. Injen also backs this intake with a limited lifetime warranty.