Injen 98-99 Maxima Polished Cold Air Intake

If you're looking to get more out of your 1998 or 1999 Nissan Maxima, this Injen RD Series polished cold air intake is a solid choice. It's designed to replace your restrictive factory airbox and intake tubing with a smoother, more direct path for air to enter your engine. This means your engine can breathe easier, leading to noticeable gains in horsepower and torque, especially in the mid-range where you'll feel it most during 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, unlike crush-bent tubing that can create restrictions. This smooth, uninterrupted airflow path helps your engine pull in cooler, denser air from behind the front bumper, which is crucial for optimal combustion. The intake also comes with a serviceable Injen SuperNano-Web dry air filter. This filter offers a large surface area for maximum airflow while still providing excellent filtration, and it can be cleaned and reused, saving you money in the long run. You'll also notice a more aggressive, throaty sound from your engine when you step on the gas.

This kit includes everything needed for installation, including the tubing, filter, and hardware. Injen backs this intake with a limited lifetime warranty, reflecting their confidence in its build quality and performance. It's also CARB exempt, meaning it meets emissions standards in California and other states that follow its regulations.