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Borla Resonator Muffler (18-20 GT w/ Active Exhaust)

Item 405808
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Market Price $331.08 You Save 12% ($38.09)
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$292.99 (each)

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    Features, Video & Details

    • Improve Exhaust Notes of Borla Cat-Back
    • Boost Exhaust Flow for Better Horsepower Gains
    • Dual Inlet and Outlet Design
    • Polished 3-Inch Stainless Steel Construction
    • Direct Bolt-On to Borla Connection Points
    • Requires Borla Active Cat-Back Exhausts
    • Fits All 2018-2020 Ford Mustang GT Models with Active Exhausts

    Review & Installation Video

    Review & Install Video

    Improve Exhaust Notes of Borla Cat-Back. If you’ve installed a Borla Cat-Back exhaust, but you want to reduce the loud droning noise, then the Borla Resonator Muffler is the perfect add-on for your Mustang GT. This Borla Resonator improves your 2018-2020 Ford Mustang GT’s overall exhaust note, making it louder and more aggressive, without irritating drone from the cat-back exhaust. This improved “growl” is perfect for your car’s “muscle car” reputation.

    Boost Exhaust Flow for Better Horsepower Gains. With a performance vehicle like the Ford Mustang GT, you’d want to squeeze every bit of horsepower from your engine as possible. With this in mind, the Borla Resonator Muffler is a great investment, because it can help improve your exhaust flow. Resonators don’t reroute exhaust gases, and this reduces back pressure that potentially frees up a few more horses under the hood.

    Polished Finish, 3-Inch Stainless Steel Tubing. The stainless steel construction of the Borla Resonator Muffler makes it a very tough, long-lasting hardware for your Mustang. It is made from premium T-304 stainless steel that won’t rust or corrode, even when exposed to the elements.

    Warranty. This resonator is also backed by Borla’s Million Mile Warranty for non-moving parts, so you’re assured that this resonator will last a very long time.

    Direct Bolt-On Installation. Installing the Borla Resonator Muffler is very easy, even for those with basic or intermediate mechanical skills. It directly bolts into the Borla Cat-Back exhaust’s connection points. This can be installed using basic hand tools, and will re-use the original Borla installation hardware from the cat-back.

    Application. The Borla Resonator Muffler is designed to be used on all 2018-2020 Ford Mustang GT models equipped with Active Valve Exhaust and a Borla Active Cat-Back Exhaust.

    Fitment: 2018 2019 2020 Details

    MPN# 60661

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Resonator Muffler
    Installation Info
    Will it fit my Mustang?

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          Customer Reviews (2) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Afternoon

          • Loudness / Volume 4 4
          • Exhaust Note 4 4
          • Fit & Finish 5 5
          • Bang For Your Buck 5 5

          • 5/5

            Installation Time: Less than 1 Hour

            May 25, 2019

            Needed to tone down the beast

            I bought the cat back s type borla exhaust which comes with an x pipe. Man it sounded great! After a few weeks of my daily commute I had to tone it down a bit. The drone in the cabin was more than I like, even though it’s Borla there was a noticeable drone. I grabbed one of these resonators from American Muscle and clamped it on. The sound is still a deep tone but more mellow like I like now. You still have that Borla mustang sound especially when you step on it, but the drone is basically gone at highways speeds. If I was back in my 20’s I would have left the x pipe on. Though I do miss that sound from time to time. I am still very happy with the resonator and keeping the x pipe in case I want to re live my youth again.


            Year: 2018 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            November 25, 2018


            Looking for a deep sound without not waking up all your neighbors. Add this resanotor will do the job.


            Year: 2019 Submodel: GT

            Helpful (10)