DynoMax Performance Exhaust has announced a brand-new stainless steel cat-back for 2009 Ford F-150 trucks, bringing high-performance, less restriction and a unique sound to the popular truck model. The DynoMax system for 2009 Ford F-150 trucks (p/n 39486) delivers power improvements while opening up exhaust flow. The system features three-in. mandrel-bent, 409-grade stainless steel piping, providing extended protection against corrosion. The new system also includes the latest DynoMax addition: a performance, show-styled double-walled, logo-embossed four-inch tip. Each DynoMax system includes all OE-quality hangers and accessories for a fast, easy installation. The DynoMax F-150 system also features the Ultra Flo Welded muffler, a straight-through, unrestricted design that is dyno-proven to support up to 2,000 SCFM and 2,000 horsepower. These mufflers are 100-per cent welded and include Continuous Roving Fiberglass (CRF) technology to absorb unwanted interior resonance and provide a rich, deep performance tone.