The Flowmaster muffler produces a deep smooth sound that is unique to itself and very different from the sound of glass packs or other packed-style mufflers. Its sound has been proven to be the preferred and most recognized sound of many automotive enthusiasts.
Different Flowmaster muffler series offer different levels of sound. The sound levels offered include mild, moderate and aggressive. Typically the 60 Series, 70 Series and Super 50 Series mufflers offer a milder sound and reduced interior noise. The 50 Series Delta Flow mufflers offer a more moderate sound, while the 40 Series mufflers have a more aggressive sound.