40 Delta Flow® - 2.50 Offset In / 2.25 Dual Out - Aggressive Sound 1978-dodge-cb300-esi2449886 155 in Bore - 1/16

155 in Bore - 1/16 x 1/16 x 3/16 in Ring Grooves - Minus 4

1 - Steel - Internal Balance - Small Block Ford - Each

438 in Height - Finned - Baffled - Breather Holes - Hardware Included - Aluminum - Polished - Small Block Ford - Pair

Bed Mat - X-Mat - Roll Out - 6 ft 9 in Bed - Rubber - Black - Ford Fullsize Truck 2017-23 - Each

Cylinder Head Stud Kit - Patriot Series - 12 Point Nuts - Chromoly - Black Oxide - Ford Coyote - Kit

40 Delta Flow® - 2.50 Offset In / 2.25 Dual Out - Aggressive Sound 1978-dodge-cb300-esi2449886 155 in Bore - 1/16This 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.