Description
American Thunder Cat Back Exhaust System; Dual; Dual Rear Same Side Exits; 2.5 in. ; Super 40 Series
Flowmaster’s American Thunder cat-back exhaust system for the 1998-2003 Ford F-150 pickup truck is perfect for the person looking for an aggressive sound level with all of the performance benefits that you would expect from Flowmaster. This DOR/DOS (Dual Out Rear, Dual Out Side) bolt on 409S stainless steel system for the 4.6L and 5.4L V8 engines features dual 2.50″ tailpipes and 3.50″ polished stainless steel tips. This system is designed to fit all wheelbases and uses Flowmaster’s Super 40 Series muffler. The exhaust system is covered by Flowmaster’s Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more.
Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.
Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles. 
