Flowmaster 8325508 - 50 Series Delta Force Race Muffler

50 Series Race Muffler 409SS - 2.50 Center In / 2.50 Center Out -Aggressive Sound The Delta Force 50 series race mufflers utilize Flowmaster's Delta Flow technology and feature excellent power characteristics with good sound reduction qualities and are constructed for race applications that have strict decibel level requirements to adhere to. Please call the Flowmaster tech-line for assistance with specific decibel requirements and applications.