Flowmaster 30 Series Race Muffler 3 1/2" #53531-12 6559600 Coil Shape: Round

Coil Shape: Round

Harmonic Balancer Construction: Elastomer

Fuel Pump Type: Mechanical

Can be used also as a high grade magnifier

Flowmaster 30 Series Race Muffler 3 1/2" #53531-12 6559600 Coil Shape: RoundThe Delta Force 30 series race mufflers utilize Flowmaster's patented Delta Flow technology and are designed for race applications needing to meet the most stringent decibel level requirements at the track. These mufflers have excellent power characteristics with maximum sound reduction qualities. Durable fully welded 16 gauge aluminized steel two chamber race muffler Good decibel reduction over open headers No internal packing to blowout Race proven