MON – FRI
7 am – 5 pm PST
SAT – SUN
Note 1: Will not fit 5.7L Hemi engine or Mega Cab models
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. American Thunder systems deliver a mild to moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. 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.
Includes hangers and hardware for easy installation
Mild to Moderate Sound exterior exhaust tone
Mandrel bent 16 Gauge Tubing
Dyno tuned for maximum performance
Fits 2006 to 2008 Dodge Ram 1/2 Ton truck with a 4.7L engine, fits 2 and 4 wheel drive and all wheelbases, except Mega Cab.
Flowmaster has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.