14020100 Hushpower Pro Series Mufflers 4 In.

The proven race design of the Hush power Pro series mufflers from Flow master delivers performance equal to and surpassing open-pipe systems. From street trucks to diesel "pullers" to every class of dirt or asphalt racing, the performance of these Hush power Pro series mufflers is matched only by their ability to dramatically reduce sound levels across the rpm range. Flow master mufflers offer 409 stainless steel internal construction enclosed in a durable, fully welded, 18-gauge Aluminized steel case. Master the flow of your diesel system like a pro with Flow master Hush power Pro series mufflers. Features Case Shape - Round. Inlet Diameter ( in) - 4.0 in.. Inlet Quantity - One. Inlet Location - Center. Outlet Diameter ( in) - 4.0 in.. Outlet Quantity - One. Outlet Location - Center. Internal Construction - Straight-through baffled. Muffler Material - Steel. Muffler Finish - Black Aluminized.