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    • (0 reviews)
      # sp18723
      Replacement Exhaust Kit by Walker.
      $1.82 - $846.42
    • (19 reviews)
      # sp4412
      Quiet-Flow Muffler by Walker. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% steel construction for maximum durability. This part is a perfect choice if you are looking for proper OE-quality acoustics...
      $30.65 - $705.29
    • (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)
      # sp13107
      This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and hardware. ANSA makes its products with utmost care to details,...
      $9.38 - $480.55
    • (0 reviews)
      # sp6393
      Exhaust Gasket by Beck Arnley. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950s, brand understands...
      $2.96 - $53.78
    • (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
    • (0 reviews)
      # sp7042
      MegaPower Muffler by Skunk2. Skunk2 muffler is designed to maximize exhaust flow and power. Each muffler by Skunk2 is constructed from T-304 stainless steel and TIG welded to accurately fit other exhaust components. The muffler...
      $162.99
    • (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
    • (2 reviews)
      # sp3768
      The Cat-Back is designed for customers seeking increased performance and better economy, combined with a powerful and well tuned exhaust note, making a real statement within legal limits with a pleasing, deep and manly tone.
      $600.00 - $3,250.00
    • (5 reviews)
      # sp12491
      Hi-Power Series 304 SS Cat-Back Exhaust System by HKS. Professionally developed with a racer in mind, this HKS exhaust system provides an easy opportunity to upgrade both the horsepower and sound of your precious vehicle. Made from...
      $363.44 - $1,197.70
    • (0 reviews)
      # mpn1569133460
      Muffler by Bosal. This muffler is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows for easy, bolt-on installation with no...
      $145.34




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    The Subaru WRX 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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    Subaru WRX 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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    Subaru WRX Models
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