The Gibson single-side cat-back exhaust for 2003–2004 Ford Expedition XLT 4.6L is a stainless system tuned to produce a deep, powerful rumble while improving acceleration and low-end torque. The muffler uses resonance chambers and louvered tuning ports to enhance flow and velocity for better performance. It bolts on with factory-style hangers, includes polished slash-cut tip and comes with a lifetime limited warranty.
Gibson 03-04 Ford Expedition XLT 4.6L 2.5in Cat-Back Single Exhaust - Stainless