Black Polish Cold Air Intake for Ford F250 F350 F450 ( 1999-2003) 7.3L Diesel EngineWake Up Your Legendary 7. 3L Powerstroke The 19992003 Ford 7. 3L Powerstroke is widely regarded as one of the most reliable diesel engines ever built. Its a workhorse designed for the long haul. However, the factory air intake system acts as a restrictor plate, choking off the airflow your turbo needs to perform efficiently. While your truck has the durability to last a million miles, the stock airbox is preventing it from delivering the power its