MagnaFlow 99-04 Ford F-150 V8 5.4L Supercharged Lightning SS Cat-Back ExhaustThe MagnaFlow 1999 2003 Ford F 150 Street Series Cat Back Performance Exhaust System 15714 brings out the personality of your 5. 4L 1999 2003 Ford F 150 with our signature resonant, powerful engine tone and dyno proven performance. Thanks to its fast flowing, mandrel bent 2. 5in. main piping and 1 Straight Through mufflers ending in a Dual Same Side Before Passenger Rear Tire exit with 3. 5in. Polished Welded On Single Wall Angle Cut Cut Edge tips,