Banks Power Stainless Steel Exhaust Muffler 4 Inch Inlet and Outlet W/hardware 99-03 Ford 7.3L - 53509

Monster Exhaust Benefits. Replacing the restrictive stock muffler with Banks free-flowing Monster muffler makes a huge difference in airflow, sound, and performance. The Banks muffler has a large inlet and outlet where the exhaust flows straight through, compared to the torturous stock design with hairpin chambers that build up back-pressure. Only Banks Monster Muffler has an expansion chamber to alleviate the nasty drone that other straight-through mufflers are known for. Banks utilizes durable ceramic packing with a high temp rating so it won't degrade like fiberglass.

Add it all together and you get a muffler that flows over three times better than stock and delivers a pleasing, throaty rumble!d 7.3L

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