K&N 03-04 Ford Thunderbird V8-3.9L Performance Intake Kit

If you're looking to get more out of your 2003-2005 Ford Thunderbird's V8 engine, this K&N performance intake kit is designed to help. It replaces your restrictive factory airbox with a system that allows your engine to breathe more freely, which can lead to a noticeable improvement in power.

The kit features a rotationally-molded high-density polyethylene (HDPE) tube, which is shaped to help increase the volume of air entering your engine. This improved airflow is paired with K&N's signature washable and reusable High-Flow Air Filter. The oversized, conical filter design is built to last, allowing for service intervals of up to 100,000 miles under normal highway driving conditions. A custom heat shield is included to help keep the intake air away from the engine's heat, ensuring cooler, denser air enters the combustion chambers for better performance. K&N guarantees an increase in horsepower and torque with this system.

Installation is typically straightforward and can often be completed in under an hour. This intake system is backed by K&N's Million Mile Limited Warranty, and it's designed not to void your vehicle's factory warranty.