Flowmaster 10 Series Delta Force ASA Spec Muffler - 3.5" Center Inlet, 3.5" Center Outlet - Aggressive Sound - 6.25" x 9.75" x 4.00" 2010012 Left SideSince 1989

Left SideSince 1989

and provide better performance

200 in I Beam Rods

100 in Long

1976-1987 Ford F-150

Flowmaster 10 Series Delta Force ASA Spec Muffler - 3.5" Center Inlet, 3.5" Center Outlet - Aggressive Sound - 6.25" x 9.75" x 4.00" 2010012 Left SideSince 1989Flowmaster Delta Force 10 Series Race Muffler improves performance. Racing is where Flowmaster began. These mufflers provide maximum scavenging for added torque and horsepower in race applications. This revolutionary technology has allowed Flowmaster to shrink case sizes for improved ground clearance, while at the same time reducing exterior sound level and interior resonances, major causes of driver fatigue. Born and bred on the race track, Delta