Super 40 Stainless Steel - 3.00 Center In / 2.50 Dual Out - Aggressive Sound 2003-ford-f-250-super-duty-esi3273936 25 in W x 19

25 in W x 19

70 Ratio - 31 Spline - Iron - Natural - Ford 9 in - Each

7-Liter engine

Transmission Gear - Reverse Gear - Steel - Bert Second Generation Transmissions - Each

Super 40 Stainless Steel - 3.00 Center In / 2.50 Dual Out - Aggressive Sound 2003-ford-f-250-super-duty-esi3273936 25 in W x 19The Super 40 features Flowmaster's Delta Flow technology. It's larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series, but with a deeper tone, and all the benefits of extra performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.