Flowmaster 50 Series Big Block Mufflers

Our largest and quietest muffler, the Flowmaster 50 Series Big Block Mufflers is made for tow vehicles, full-size trucks, large SUVs and RVs/Motor homes. More than just compatible with big cubic inch engine application, the Flowmaster 50 Series Big Block incorporates a very large Resonance Tuning Chamber to almost completely reduce interior sound in large cab vehicle and enough case volume to handle engines under heavy loads perfect for tow vehicle. Significant improvements in mileage, torque, and horsepower are to be expected from this muffler, as well as decreased engine heat and wear.