The Gibson single exhaust for 1997–1999 Ford Explorer XL 4.0L is a stainless cat-back that exits straight out the rear and provides a straightforward bolt-on upgrade with an expectation of about 5–10 horsepower gain. It includes mandrel-bent stainless tubing, a baffled Superflow muffler for minimal cabin drone, polished round slash-cut tip, factory-style hangers and comes with a lifetime limited warranty for long-term peace of mind.
Gibson 97-99 Ford Explorer XL 4.0L 2.5in Cat-Back Single Exhaust - Stainless