Flowmaster 40 Delta Flow Muffler-2.50 Center In / 2.25 Dual Out - Aggressive Sound Chassis & Frame Components For externally balanced engines

For externally balanced engines

Superior Moisture Wicking Properties

Small Block Chevy / Mopar

a vacuum advance lock out

Flowmaster 40 Delta Flow Muffler-2.50 Center In / 2.25 Dual Out - Aggressive Sound Chassis & Frame Components For externally balanced engines40 Delta Flow Muffler 2. 50 Center In 2. 25 Dual Out Aggressive Sound Universal Muffler Not a direct fit. Some adaptation required. This two chamber design incorporates Flowmaster's patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded