Use this exhaust system when you're looking to enhance your Ford F - 150's performance and sound. It's perfect for Ford F - 150 owners, especially those who want a reliable and long - lasting exhaust. The system is made of T409 stainless steel and has 3 - inch mandrel - bent tubing for better exhaust flow. It's a dual rear - exit resonator - back design, fitting specific 2017 - 2021 Ford F - 150 Raptor and 2019 Ford F - 150 Limited models.