Diamond Eye KIT 3in Catback Single GAS SS FORD 5.4L F150 04-08

If you're looking to give your 2004-2008 Ford F-150 with the 5.4L engine a more aggressive sound and better exhaust flow, this 3-inch stainless steel cat-back system from Diamond Eye Performance is a solid option. It replaces the factory exhaust from the catalytic converter back, giving your truck a deeper tone and potentially freeing up a bit of horsepower by reducing backpressure.

Diamond Eye builds these systems using CNC mandrel-bent tubing, which means the pipe maintains its diameter through the bends. This is important because it allows exhaust gases to exit the engine more freely compared to crush bends, which can restrict flow. The entire system is constructed from stainless steel, so you can expect it to hold up well against rust and corrosion, even in areas where you might encounter road salt or moisture. This kit is designed as a direct replacement for your stock exhaust, making installation more straightforward.

This kit includes everything needed to replace your factory cat-back exhaust. You'll get the muffler, tailpipe, and all necessary hangers and clamps. It's a well-built system designed to fit your F-150 without major modifications.