Flowmaster - 40 Delta Flow® - 2.50 Center In / 2.50 Dual Out - Aggressive Sound 625 in Springs - Straight

625 in Springs - Straight Plug - Aluminum - Big Block Chevy - Each

Crush Washer - 6 AN - Aluminum - Natural - Set of 5

063 in Thick - Composite - Metering Blocks - Holley 4150 / 4160 - Set of 10

Antifreeze / Coolant - High Performance - Pre-Mixed - 1 gal Jug - Each

Flowmaster - 40 Delta Flow® - 2.50 Center In / 2.50 Dual Out - Aggressive Sound 625 in Springs - StraightThis two chamber design incorporates Flowmaster's Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.