Medium & Heavy Duty Mufflers
Walker® Commercial Vehicle mufflers are made in the USA and provide an economical replacement for OE components
- All-aluminized 18-gauge steel
- Domed heads to shed moisture for increased life
- Bridge-constructed inlets and outlets for vibration resistance
- Internally-welded baffles to increase durability
- Smooth flow for better fuel economy
Walker® offers a complete line-up of commercial vehicle mufflers with dimensional and backpressure data by SKU. Reference your new Master Catalog for detailed information on each muffler.
Specifically designed for Class 7 and 8 vehicles, Mega-Flow® combines Walker® quality and engineering with cutting-edge technology to deliver unparalleled performance (based on published competitive data); as much as 30% backpressure reduction without sacrificing acoustics. That means increased fuel efficiency and driver comfort.
*Tests performed on a Peterbilt® Class 8 truck with a Caterpillar® C-12 engine. Measured on vehicles equipped with a Mega-Flow® Muffler and identical vehicles equipped with OE mufflers over a 6-month period for a total of 312,961 miles.
Key Features of the Mega-Flow® Muffler
- Reduced backpressure without sacrificing acoustics! The Mega-Flow® muffler combines an open-style design with OCF roving to produce a muffler that improves fuel efficiency without impact on acoustics, two key needs of the fleet. Other mufflers currently available address one at the expense of the other.
- Backed By the best guarantee in the industry! Only Mega-Flow® mufflers are backed by a Limited Lifetime Warranty plus an exclusive 90-day Safe & Sound Guarantee.
- Remetallized seams provide corrosion resistance! The Mega-Flow® muffler has remetallized welds that provide greater corrosion resistance. This remetallization process is unique to Walker® and ensures that your muffler will last longer and look better.
- The embossed shell distinguishes the Mega-Flow® muffler from others! The Mega-Flow® muffler looks as good as it performs. With its embossed logo on the body, you can tell you're getting something special, and so can everyone else.