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X-Force 1-7/8 x 3-Inch Long Tube Headers with High Flow Metallic Catalytic Converters (18-20 GT)

Item 408547
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Market Price $1,263.85 You Save 13% ($164.85)
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$1,099.00 (kit)

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      Product Information

      Features, Description, Q&A, Specs & Installation


      • Enhances Horsepower and Torque
      • Generates a Powerful and Rich Exhaust Sound
      • Long Tube Header Design
      • Made with Dual, High-Flow Metallic Catalytic Converters
      • Includes Connection Pipes
      • Features 1.875-Inch Pipes and 3-Inch Collectors
      • High-Quality, Mandrel-Bent Stainless Steel Tubing
      • Bolt-On Installation
      • Fits All 2018-2020 Ford Mustang GT Models


      Excellent Upgrade. X-Force’s 1.875 x 3-Inch Long Tube Headers with High Flow Metallic Catalytic Converters provides your Mustang with improved horsepower delivery and additional torque. This kit comes with free-flowing, mandrel-bent tubing and high-flow catalytic converters that optimize your GT’s exhaust flow and improves scavenging. Moreover, this system is designed to be an excellent upgrade option for your restrictive factory exhaust manifolds, unleashing your vehicle’s true power as a result.

      Powerful Exhaust Sound. Using these X-Force Long Tube Headers will elevate your GT’s presence by producing an aggressive roar to accompany your car’s dynamic performance. These are particularly engineered to boost your Mustang’s overall dynamics while releasing a distinctively bold exhaust sound.

      High-Flow Catalytic Converters. Made for optimum performance, The X-Force high flowing catalytic converters are engineered to outperform the restrictive factory cats. The catalytic converters that come with these Long Tube Headers significantly boost the exhaust flow for a significant increase in rear-wheel horsepower and torque.

      High-Quality Construction. These Long Tube Headers with High Flow Metallic Catalytic Converters are crafted to deliver excellent durability and longevity. They also feature a corrosion-resistant, stainless steel, mandrel-bent tubing construction, so they have less restrictive folds and bends. This allows the headers to better facilitate the expulsion of exhaust gases, resulting in optimum vehicle performance.

      No Tune Required. These Long Tube Headers with High Flow Metallic Catalytic Converters do not require reprogramming of your vehicle’s computer. With advanced engineering, this system boosts engine power using the factory tune.

      Application. The X-Force 1.875 x 3-Inch Long Tube Headers with High-Flow Metallic Catalytic Converters are specifically designed to be used on all 2018-2020 Ford Mustang GT models.

      Fitment: 2018 2019 2020 Details

      MPN# H2-FM18-KITB

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Questions & Answers (3 answers)

      3 Top Rated Questions

      Are these really "No tune required" like the description says? If so, will there be a review showing a Headers Non-tuned vs Headers Tuned video? Would love to see what kind of gains there would be. Thank you, Daniel

      • A tune certainly isn't required, meaning, if you install these without a tune, your Mustang will run without any problems. You're probably not gaining any power, and potentially would lose a bit, installing this or any long tube header without a tune. If you want the power from long tubes, the tune would then definitely be required regardless.

      Helpful (2)

      Will this work with a borla s type catback exhaust?

      Do these long tube headers work with my already installed Roush Cat Back Exhaust Item 408119?

      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Driver Side Catted Header Assembly
      • (1) Passenger Side Catted Header Assembly
      • (1) Driver Side Connection Pipe
      • (1) Passenger Side Connection Pipe
      • Installation Hardware

      Will It Fit My Mustang

      • Bullitt - 19, 20
      • GT - 18, 19, 20