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    • (18 reviews)
      # sp4612
      Muffler by Bosal. Bosal works closely with OEM's across the globe to develop customer tailored solutions. With a focus on every aspect of the customer's needs, from product design to location of manufacture, Bosal's worldwide...
      $34.13 - $607.10
    • (1 reviews)
      # sp4632
      Exhaust Installation Parts by Bosal. Bosal works closely with OEM's across the globe to develop customer tailored solutions. With a focus on every aspect of the customer's needs, from product design to location of manufacture,...
      $0.10 - $16.20
    • (0 reviews)
      # sp13162
      This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust Technologies product ensures superior durability as...
      $2.04 - $107.58
    • (1 reviews)
      # sp4400
      Race Series Bullet Muffler by DynoMax. This dyno tested and track proven muffler features unrestricted, straight-through design for maximum horsepower and CRF Technology for sound reduction. Its 100% welded construction ensures long...
      $20.03 - $77.90
    • (4 reviews)
      # sp4401
      Super Turbo Muffler by DynoMax. Get improved exhaust flow and reduced back pressure for better performance, and a mellow tone without annoying interior resonance, with this Super Turbo Muffler. Its patented flow directors and large...
      $48.86 - $185.86
    • (2 reviews)
      # sp4403
      This muffler-back exhaust system includes pipe, clamps, tip, and Ultra Flo Welded muffler that features unrestricted, straight-through design for a dyno-proven increase in power and maintains a deep throaty tone while absorbing...
      $66.15 - $230.24
    • (1 reviews)
      # sp4406
      VT Muffler by DynoMax. The revolutionary DynoMax VT performance muffler will give your vehicle a deep, throaty sound and eliminate drone while increasing exhaust flow and horsepower. It is built using the exclusive DynoMax Valve...
      $94.15 - $253.65
    • (0 reviews)
      # mpn500322948
      Universal Aluminized Steel Connector (41945) by Walker. Material: Aluminized Steel. Inlet Diameter One: 2". Outlet Diameter: 2". Overall Length: 4.5". This catalytic converter is constructed specially for your vehicle to directly...
      $5.40
    • (0 reviews)
      # mpn500294237
      Universal Pro-Fit Economy Aluminized Steel Oval Muffler (17912) by Walker. Muffler Series: Pro-Fit Economy. Muffler Body Height: 4.25". Muffler Body Width: 8.813". Muffler Body Length: 11". Muffler Overall Length: 13.75". Muffler...
      $25.64
    • (0 reviews)
      # mpn500307065
      Universal Low Carbon Steel Bushing (35254) by Walker. Material: Low Carbon Steel. Inlet Diameter One: 2". Outlet Diameter: 2". Overall Length: 7". This catalytic converter is constructed specially for your vehicle to directly...
      $4.32
    • (0 reviews)
      # mpn500321380
      Universal Aluminized Steel Muffler Strap (36386) by Walker. Includes: Muffler Strap. Material: Aluminized Steel. Overall Length: 9". This catalytic converter is constructed specially for your vehicle to directly replace the original...
      $12.68
    • (0 reviews)
      # mpn500322666
      Universal Heavy Duty Aluminized Pipe Elbow (41532) by Walker. Bend Type: 90 Degree Bend. Bend Radius: 6". Inlet Diameter One: 4". Outlet Diameter: 4". Overall Length: 24". Connection Type: Pipe. Finish: Aluminized. This catalytic...
      $45.47
    • (1 reviews)
      # mpn500322742
      Universal Aluminized Steel Extension Pipe (41709) by Walker. Material: Aluminized Steel. Diameter: 2". Inlet Diameter One: 2". Outlet Diameter: 2". Overall Length: 12.375". Inlet Quantity: 1 Inlet. Outlet Quantity: 1 Outlet....
      $17.38
    • (0 reviews)
      # mpn500323016
      Universal Aluminized Steel Reducer (41962) by Walker. Material: Aluminized Steel. Bend Radius: 2.5". Inlet Diameter One: 2.5". Outlet Diameter: 2.25". Overall Length: 4.5". This catalytic converter is constructed specially for your...
      $4.38
    • (0 reviews)
      # mpn500323014
      Universal Aluminized Steel Reducer (41959) by Walker. Material: Aluminized Steel. Bend Radius: 2.5". Inlet Diameter One: 2.5". Outlet Diameter: 2". Overall Length: 4.5". This catalytic converter is constructed specially for your...
      $4.35




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    The Freightliner muffler consists of metal plates and tubes with multiple holes in them. Between the tubes, there are chambers that cancel out the unwanted frequencies and suppress the annoying noise. Once the sound waves and exhaust gases move into the muffler through the center tube, they bounce off the back wall of the unit and then come back out into the main body. That creates waves that have the opposite amplitude, which makes them cancel each other out.

    The chamber where the process of wave collision occurs is called the resonator. Its size is precisely calculated so that the process runs smoothly. The principle that the device works on is pretty simple. When the high-pressure sound wave that is coming out from the first chamber meets the reflected low-pressure wave, they cancel each other out because the two waves add up to zero. That's the way the muffler reduces that tremendous amount of noise produced by the engine.

    Another important characteristic of the muffler is that its body is constructed in three layers: two thin metal layers with a thicker insulated layer between them. Such a structure allows the unit to absorb some of the pressure pulses. The muffler itself is manufactured from sturdy materials such as stainless steel and aluminum-coated steel. That ensures the part to function for a long period of time. And the better your muffler operates, the greater performance your vehicle offers.

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    Freightliner Mufflers & Resonators Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
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