The Flowmaster Super 40 Series Muffler is the most aggressive street muffler Flowmaster offers. It has the deepest tone while retaining the classic two chamber race design.
The Super 40 5 x 10 inch case design, modeled after Flowmaster's Top Ten race mufflers, gives you a deeper tone that retains Flowmaster's famous 40 Series sound and feel. Their Super 40 is the most aggressive, deepest sounding street 2-chamber muffler. The classic black case maintains that original Flowmaster look.
- The body measures 13" long, 10" wide and 5" thick