Stage 3 Motorsports is your source for 1999-2003 F250 Cold Air Intakes. Adding a F250 Cold Air Intake to your 1999-2003 Superduty will give you a great increase in Horsepower and torque. We suggest that a cold air intake is the first thing you do to your 7.3L diesel engine. Looking for more power? Check out our F250 Performance Exhaust.