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American Racing Headers 1-7/8-Inch Long Tube Headers with X-Pipe; Catted (15-20 GT350)

Item 404166
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Market Price $2,693.99 You Save 12% ($310.49)
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$2,383.50 (kit)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Dramatic Increase in Horsepower and Torque
      • Improves Sound Volume and Tone
      • Long Tube Headers
      • Includes ARH 200 Cell Metallic Substrate Catalytic Converters
      • Includes X-Pipe
      • 1-7/8 inch Primaries with 3 inch Merge Collector with Welded Scavenging Spike
      • 304 Stainless Steel Construction
      • Intended for Track and Off-Road
      • Computer Retune Required for Operation
      • Fits 2015 to 2020 Ford Mustang GT350 Models


      Designed for Performance. These American Racing Headers 1-7/8 in. Long Tube Catted Headers with X-Pipe are designed to push your GT350 to its limits. It features large, 1-7/8 in. primaries with optimized tube routings to ensure maximum exhaust flow for increased horsepower and torque output. The 3 in. merge collector also has a welded scavenging spike to further improve performance.

      Improves Sound Volume and Tone. ARH fine-tuned these headers to produce a free-flowing, high-velocity exhaust flow. This lets it generate a noticeable increase in tone and volume.

      High-Performance Catalytic Converters. ARH makes exceptional exhaust system components and these catalytic converters are no exception. These cats are highly efficient and also extremely durable.

      Made in the USA! American Racing Headers fabricated these headers from components all made in the USA. They’re made from precision-cut 304 Stainless Steel and crafted by master fabricators.

      No Tune Required. These headers are the result of years of research and testing and made specifically for the application so no computer re-tune is required. However, a re-tune is recommended to ensure the best possible performance.

      Not CARB Certified. These ARH long tube headers are not CARB certified and are intended for off-road and track use only. They are not recommended for use on public streets and highways.

      Application. These American Racing Headers 1-7/8 in. Long Tube Catted Headers with X-Pipe are specifically designed for 2015 to 2020 Ford Mustang GT350 models.

      Fitment: 2015 2016 2017 2018 2019 2020 Details

      American Racing Headers MTSH3-16178300LSWC

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Long Tube Headers with Catalytic Converters
      • (1) X-Pipe
      • Installation Hardware

      Customer Reviews (22)

        Reviews of American Racing Headers Exhaust products have an average rating of 4.9 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • GT350 - 15, 16, 17, 18, 19, 20
          • GT350R - 15, 16, 17, 18, 19, 20

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