1999-2003 Superduty 7.3L 4 Down Pipe (FS9401)For the enthusiast who constantly pushes the boundaries, this collection of components is designed to elevate your truck's performance beyond the usual limits. Featuring the MBRP downpipe, this system ensures the fastest, most efficient exhaust flow directly from the turbo to the tip, drastically improving overall performance. Features Components designed for pushing performance limits Engineered for trucks with no boundaries MBRP downpipe provides