A performance exhaust is a great way to coax more power and performance out of your engine. Ford Flowmaster Exhaust Systems, however, can also take it a step further, should you want to, and deliver a roaring exhaust sound to match that upgraded performance. Flowmaster’s exhausts for 1997 - 2002 Ford Expeditions can work wonders for an already powerful SUV. What makes these exhausts so effective is that they offer massive room for the outward flow of exhaust and eliminate back pressure. The exhaust coming from your engine is hot, and hot air cannot linger around your engine because it hampers performance. That is the beauty of the Expedition’s Flowmaster Exhaust System: It gives room for that exhaust to flow more quickly. This, then, provides two benefits. First, that hot gas gets away from your engine, allowing the temperature to remain cooler and the engine to perform better. Furthermore, the free-flowing exhaust will not back up so easily, so back pressure, which also hampers engine performance, is virtually eliminated. Finally, certain Flowmaster exhausts are, well, louder than others, and they produce a thoroughly authoritative roar that announces your Expedition’s presence – and its newfound power – everywhere you go. All customers definitely deserve fantastic technical assistance while purchasing high-quality parts for their car or truck. Thus, we've established an always-online customer support desk to support you with your questions. If you can find a better price, let us know - we will beat any advertised price for auto parts.