4-year/500,000-mile warranty and exclusive 90-Day Safe and Sound Guarantee
Straight-through performance design engineered for class 7 and 8 vehicles
Mega-Flow Direct Fit Exhaust Muffler 5" Inlet (ID) 5" Outlet (ID)
Offered in a variety of styles, sizes and materials for your installation needs
Mega-Flow Exhaust Muffler
Exhaust Muffler
65 IH/Navistar Truck CO-4000D, COF-4000D COT-4000D - 6-V8
Delivers as much as 30% back-pressure reduction without sacrificing acoustics
Manufactured from aluminized steel for durability
Walker Mega-Flow 22964 Direct Fit Exhaust Muffler 5" Inlet (ID) 5" Outlet (ID)
Mega-Flow® performance mufflers combine Walker® quality and engineering with cutting-edge technology, to deliver unparalleled performance and reduce backpressure without sacrificing acoustics. Walker is a "one-stop" convenience, offering complete engine-to-tailpipe coverage of replacement emissions control systems and components for popular domestic, import and commercial vehicle applications.