Upgrade your 99-03 F-150 5.4L with the MagnaFlow Exhaust System Kit. This stainless steel catback system is designed to enhance the performance of your vehicle's exhaust and emission systems. With its features including cat back design, this kit is a perfect fit for those who want to improve the overall look and functionality of their vehicle. The MagnaFlow Exhaust System Kit is a high-quality product that is built to last. It is perfect for car and truck owners who want to improve the sound and performance of their vehicles. With its durable construction and exceptional design, this kit is sure to exceed your expectations.