For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S.S. (Dual out same side) systems are the perfect choice. This American Thunder system features a Super 50 Series performance muffler that delivers a moderately aggressive exterior sound with a moderate interior tone, which is suited to the enthusiast who wants their performance to be heard. The dual 2.50-inch mandrel-bent tailpipes exit in front of the right side rear tire and are finished off with dual 3.00-inch polished stainless steel tips. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, the system includes all necessary parts and hardware for easy installation and is covered by our 3-year Limited Warranty.
Features:
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Moderately Aggressive Exterior Exhaust Tone
- Dyno Tuned for Maximum Performance
- Super 50 Series Performance Muffler
- Uses the Factory Hanger Locations
- 3-year Limited Warranty
- Easy Installation
Fits 1999-2004 Ford Lightning with 5.4L supercharged engine, fits 2/4 wheel drive.
Installation Notes:
Fits 1999-2004 Ford Lightning with 5.4L supercharged engine, fits 2/4 wheel drive.
About Flowmaster
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 our 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.

Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make |
Model |
Submodel |
Years |
Engine |
Ford |
F-150 |
Lightning |
1999 |
5.4L / 330 / V8 |
Ford |
F-150 |
Lightning |
2000 |
5.4L / 330 / V8 |
Ford |
F-150 |
Lightning |
2001 |
5.4L / 330 / V8 |
Ford |
F-150 |
Lightning |
2002 |
5.4L / 330 / V8 |
Ford |
F-150 |
Lightning |
2003 |
5.4L / 330 / V8 |