Injen 99-00 Mazda Protege L4 1.8L Black RD Cold Air Intake

If you're looking to get more sound and power out of your 1999-2000 Mazda Protege with the 1.8L engine, this Injen RD Series cold air intake is a solid option. It's designed to replace your restrictive factory airbox and tubing with a smoother, more direct path for air to enter the engine. This means your engine can breathe easier, leading to improved performance and a more satisfying sound under acceleration.

The heart of this system is the mandrel-bent 6061-T6 aluminum tubing. Mandrel bending ensures the tube maintains a consistent diameter throughout its length, which helps maintain smooth airflow without the restrictions you might find in a factory setup. This smooth path allows cooler, denser air to be drawn from behind the front bumper directly into the engine. It also includes a fully serviceable Injen SuperNano-Web dry air filter, which offers a large surface area for increased airflow and good filtration without needing oil. You'll notice an aggressive, throaty tone when you step on the gas, and Injen has worked to ensure safe air-fuel ratios are maintained.

This kit comes with all the necessary hardware and instructions for installation. It's also CARB EO certified, meaning it meets emissions standards in California and other states that follow its regulations. Injen backs this intake with a limited lifetime warranty, giving you peace of mind with your purchase.