For the person who wants the look of a traditional dual exhaust system with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.R./D.O.S. systems are the perfect choice, and include exit pipes for both dual out rear and dual out side configurations so that you can choose the one that fits your style. Force II systems deliver a moderate exterior tone and moderate to mild interior tone, and are suited to customers looking for efficiency improvements without a lot of noise. Especially recommended for towing applications. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.Features: Mandrel Bent 16 Gauge Aluminized Tubing 3 Year Limited Warranty Stock to Mild Exterior Exhaust Tone Includes Hangers and Hardware For Easy Installation Connects After Factory Catalytic Converter Dual Out Rear Exit or Rear Side Exit Dyno Tuned for Maximum PerformanceProduct Description: 98-'03 Ford Truck, F150, 1/2Ton, 4.6L / 5.4L, 2/4 Wheel Drive, All Wheelbases, Incl. Super Crew, 2.50" Outlets, Supe 50 Series Muffler, 3.00" Stainless Tips, Force II, Incl Tube Extensions for DOR and DOS in Kit, Mandrel Bent Tubing,16 Gauge Aluminized SteelPit Stop USA offers Flowmaster Force II Cat-Back Single Exhaust System - 1998-2003 Ford F-150 4.6L/5.4L 17472 at low everyday prices. Be sure to check out all our products from Flowmaster including Flowmaster Ford F-150 Exhaust Systems and Flowmaster Ford Truck / SUV Exhaust Systems.