Flowmaster's Force II Cat-Back exhaust system for the 2002-2005 Ford Explorer, Mercury Mountaineer, and Lincoln Aviator is perfect for the person looking for mild to moderate sound levels with all of the performance benefits that you would expect from Flowmaster. This bolt-on SOR (Single Out Rear) emissions-legal system for the 4.0L V6 and the 4.6L V8 features a 70 Series muffler, 2.50" mandrel bent stainless steel tubing and a 3.25" oval polished 304 stainless steel tip. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.