This Flowmaster American Thunder® cat-back exhaust system for the 2004-2008 Ford F-150 and Lincoln Mark LT trucks with the 4.6L or 5.4L engines is perfect for the person looking for a deep aggressive exterior sound with a moderate interior tone, and with all of the performance benefits that you would expect from Flowmaster®. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal exhaust system features 16-gauge mandrel-bent aluminized steel tubing flowing into a specially designed Super 40™ Series performance muffler with dual 2.50-inch aluminized steel tailpipes which use the factory hanger locations for an easy installation. The tailpipes exit either behind the rear wheels, which is ideal for towing, or straight out the back under the rear bumper for a muscular look. The system is finished off with a pair of large 3.00-inch polished stainless steel tips. The exhaust system is covered by our 3-year Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home. For those who prefer all stainless steel construction with a Lifetime Limited Warranty, check out exhaust system #817417. Note: Fits 2/4 wheel drive models all wheelbases.. Fits 2004-2008 Ford F-150 and Lincoln Mark LT trucks with 4.6L or 5.4L engine, 2/4 wheel drive and all wheelbases.. 2004-2008 Ford F-150 and Lincoln Mark LT trucks with 4.6L, 5.4L engine. - Aggressive to moderate sound. Features a Specially Designed Super 40 Series Performance Muffler. Flowmaster 04-08 F-150 American Thunder Cat-Back Exhaust System. Includes Hangers and Hardware for an Easy Installation. Flowmaster American Thunder Cat-back Exhaust System. Mandrel bent 16-gauge Aluminized Steel Tubing. 3.00-inch Polished Stainless Steel Tips. Dyno Tuned for Maximum Performance. Uses the Factory Hanger Locations. Moderate Exterior Exhaust Sound. Includes Dual Tailpipe Exits. 0408 F150 THUNDER DORS. SYS 04-08 F-150 THUN. Easy Installation. SYS 04-08 F-

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