40 Delta Flow® - 3.00 Center In / 3.00 Center Out - Aggressive Sound 2003-ford-explorer-esi6086216 063 in - Steel -

063 in - Steel - 1 lb Box - Each

500 in Arch - 150 lb/in Spring Rate - 2500-2750 lb Car Weight - Steel - Black Paint - Chevy Camaro Style - Each

875 in ID - 8 in Length - 200 lb/in Spring Rate - Steel - Purple Powder Coat - Each

For Model 4160™ and Model 4175™

40 Delta Flow® - 3.00 Center In / 3.00 Center Out - Aggressive Sound 2003-ford-explorer-esi6086216 063 in - Steel -This 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.