Ford F150 5.4 1-5/8 Shorty Exhaust Headers Titanium Ceramic 99-03 PART #3518 FEATURES: 10-17 Horsepower Increase Over Stock Increased Exhaust Flow For Enhanced Power and Sound 1-5/8" Primaries for Maximum Flow 16 Gauge CNC Mandrel Bent Steel Tubing and 3/8" Thick Flanges Direct Bolt-On for Easy Installation All Required Gaskets and Hardware Included Titanium Ceramic Finish VEHICLE FITMENT: 1999-2003 Ford F150 5.4L V8 WILL NOT Fit Excursion with out EGR Re Route & PS Engine Mount Modifications Will NOT fit F-150 Lightning Truck without modification to the EGR tube Improve Your Truck's Power and Sound Improve the power and sound from your 1999-2003 Ford F150 5.4L V8 with these titanium ceramic BBK Performance shorty headers. BBK Performance shorty headers will increase your exhaust flow giving you additional horsepower and torque. BBK shorty headers will give your modular V8 powered F150 a throaty exhaust note. The titanium ceramic finish adds an attractive touch to your engine bay. Designed to Perform BBK F150 shorty headers are made from 1-5/8" CNC-machined mandrel bent tubing with 3/8" thick die-stamped flanges. The large diameter primary tube design creates unrestricted airflow for major horsepower gains. These headers are pressure tested to ensure leak free performance. Easy Installation These F150 5.4 truck shorty headers are designed as a direct bolt on. For use with factory or any aftermarket mid pipes. Kit includes new gaskets and hardware. Emissions Information This part is C.A.R.B Approved. EO Number Is D-245-16 It is Legal for use on the following in ALL 50 States: 1999-2003 Ford F150 5.4L & 1997-2002 Ford Expedition 5.4L Applications