The Gibson Dual Split cat-back exhaust for 2005–2008 Ford F-150 King Ranch 5.4L is a stainless system that reduces backpressure to increase torque and horsepower, with typical gains around 15–20 hp. It vents straight out the rear through polished dual slash-cut tips and uses a baffled, chambered muffler to limit interior drone. Installation is bolt-on with included hangers and hardware and a lifetime limited warranty.
Gibson 05-08 Ford F-150 King Ranch 5.4L 2.5in Cat-Back Dual Split Exhaust - Stainless