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Thermal R&D Cat-Back Exhaust (15-21 6.4L HEMI)

Item CH2990
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Market Price $1,469.00 You Save 10% ($146.90)
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$1,322.10 (kit)

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      Product Information

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


      • Produces a Deep Aggressive Note With No Drone
      • Improves Exhaust Flow For Increased Horsepower and Torque
      • Straight-Through Muffler Design
      • Includes Resonated Mid-Pipe
      • Heavy-Duty T304 Stainless Steel, 3-Inch Mandrel-Bent Tubing Construction
      • Polished Finish
      • Rectangular Exhaust Tips With Removable Logo Tag
      • Dual Split Rear Exits
      • Direct Bolt-On Installation
      • Designed for OEM Exhaust Hangers and Mounts
      • Fits 2015-2021 Dodge Challenger 6.4L HEMI Models


      Throaty and Intense Growl. Upgrade to a powerful exhaust system with an optimal sound quality. This Thermal R&D Cat-Back Exhaust gives your Challenger a significantly perceptible confidence with its aggressive exhaust note and high-powered driving performance. In addition, the resonant tuning chambers innovatively produce moderate interior sound with an overall improved quality and control.

      Maximum Performance. This Thermal R&D Cat-Back Exhaust features a high-flow, straight-through muffler design with superior capabilities in scavenging the exhaust gases. Its 3-inch diameter tubing and dual chambers regulate precise shifts to maximize power gains. Furthermore, the mandrel-bent tube minimizes blockage and back-pressure, facilitating a sustained powerful exhaust flow. The resulting increase in horsepower and torque provide the Challenger with a significantly improved overall vehicle dynamics, both on the street and on the track.

      Supreme Durability. Thermal R&D designed this cat-back exhaust system for long-lasting durability. It is constructed from premium 304 stainless steel with mandrel-bent tubing, fortified with a polished finish. Moreover, its fully-welded structure increases mechanical protection from crimps and dents. This exhaust system is designed to handle harsh driving conditions, including the constant attacks from the corrosive exhaust gases and thermal stress from catalytic activities.

      Straightforward Installation. This Thermal R&D Cat-Back Exhaust bolts directly onto the factory exhaust hangers and mounting points. This direct installation process takes approximately 2 hours and requires moderate mechanical skills.

      Application. The Thermal R&D Cat-Back Exhaust System is designed to fit 2015-2021 Dodge Challenger 6.4L HEMI models.

      Fitment: 2015 2016 2017 2018 2019 2020 2021 Details

      Thermal R&D B508-C513

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler Assembly
      • (2) Tail Pipes
      • (2) Exhaust Tips
      • (2) Valves
      • (6) Clamps
      • Installation Hardware

      Customer Reviews (17)

        Reviews of Thermal R&D Exhaust products have an average rating of 4.9 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Challenger

          • 392 Hemi Scat Pack Shaker - 16
          • R/T 392 - 17, 18
          • R/T Scat Pack - 16, 19, 20, 21
          • R/T Scat Pack Shaker Widebody - 21
          • R/T Scat Pack Widebody - 19, 20, 21
          • Scat Pack - 15
          • SRT 392 - 15, 16, 17, 18
          • T/A 392 - 17, 18
          • T/A 392 Widebody - 21