The Flowmaster Super 44 Series Delta Flow Muffler delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler weve ever built! Available in either 4095 Stainless Steel with a lifetime warranty or 16-gauge aluminized steel with a 3-year warranty, these mufflers feature our advanced Delta Flow Technology design and are fully MIG-welded for maximum durability.
