Super 44 - 3.00 Center In / 2.25 Dual Out - Aggressive Sound Ford/Excursion " The heat-insulating

The heat-insulating

BD Manifold:

3 customizable throttle slots

Will not fit early 2011 trucks with 8-bolt flex plate - will have to update to 6 bolt flex plate

reduces common stator failures with the OE design

Super 44 - 3.00 Center In / 2.25 Dual Out - Aggressive Sound Ford/Excursion " The heat-insulatingFlowmaster's Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we've ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.