Introducing the Diamond Eye Exhaust 5 Inch Aluminized TB with Muffler, the perfect upgrade for your 7.3 Powerstroke 1999-2003 model! This tough and durable exhaust system is capable of delivering more power and better economy, and is able to withstand even the most strenuous driving conditions. With its superior design, the Diamond Eye Exhaust is able to lower your EGTs and offer more horsepower, as well as improve sound quality. So if you're looking for an exhaust system that can provide maximum performance and durability, then this is the one for you!