Dr. Jekill & Mr. Hyde's Track Series

Track Series

Engineered by Dr. Jekill & Mr. Hyde. Distributed by Motorcycle Storehouse.Dr. Jekill & Mr. Hyde x Motorcycle Storehouse
present: Track Series

For 25 years, Dr. Jekill & Mr. Hyde has set the standard in electronically adjustable exhaust systems. Engineered in Germany and handcrafted in the Netherlands, our exhausts combine premium quality with three distinct sound modes — all controlled at the push of a button. For the Track Series, we partnered with Motorcycle Storehouse to bring this product to market. By combining our advanced exhaust technology with their strong distribution network and deep roots in the motorcycle industry, we created a product built purely for riders who want maximum sound and performance. The Track Series is exclusively available through Motorcycle Storehouse.

In our classic street exhausts, the Smartbox software controls the valve position to meet road regulations. The Track Series works without this intervention. The valve is still electronically adjustable, and you can switch between three sound modes, but there are no sound restrictions. Built with the same proven valve technology and high-quality European materials, this exhaust has one clear purpose: delivering pure, unrestricted sound and performance. No limits. No compromises.

The Track-Series is developed for environments where sound restrictions are less strict, such as racetracks or off-road use. The result is a raw and uncompromised sound experience, ideal for riders who prioritize sound character and performance over restrictions. This also makes the Track Series a perfect fit for tuned motorcycles and high-end custom builds.

With the Dr. Jekill & Mr. Hyde’s Track Series, you can choose between two premium configurations: the classic dual-pipe 2-2 slip-on or the sleek and powerful 2-1 slip-on. Both are crafted from high-grade European materials and can be finished with customizable end caps to match your bike perfectly. Both systems are designed to work with the original stock headers. Where applicable, a left-side header cap is included to ensure a clean and complete installation.

By reducing unnecessary electronic complexity while maintaining our core technology and material standards, we can offer the Track Series at a more competitive price point without compromising the premium quality riders expect from Dr. Jekill & Mr. Hyde.

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Note: Track Series is intended for use in environments where road regulations do not apply.

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Dr. Jekill & Mr. Hyde’s Track Series is exclusively available through our partner Motorcycle Storehouse.

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For Riders Who Want More Performance without limits

The Track Series Touring Exhaust is engineered for riders who want the highest level of performance. By removing the limitations required for road homologation, this system allows the engine to breathe more freely, improving exhaust flow and reducing back pressure. The result is a faster throttle response and a more direct connection between rider and machine.

The Track Series system is engineered for optimal exhaust flow and reduced back pressure, allowing the engine to breathe freely. The result is improved throttle response and a more direct connection between rider and machine.

At the same time, the system keeps the deep touring character riders appreciate. Under acceleration the sound becomes strong and aggressive, while at cruising speeds it remains balanced and controlled, making every ride feel powerful without becoming harsh.

Built to Last. Backed by a 4-Year warranty. Premium quality, no compromise

Every detail of the Track Series reflects the quality Dr. Jekill & Mr. Hyde is known for. From the precision welds to the advanced valve technology, each component is carefully designed and manufactured to deliver reliable performance and long-lasting durability. 

We use high-grade European materials and strict production standards to ensure every system meets the expectations of riders who demand the best. Our exhaust systems are not only built to sound powerful, but also to perform consistently under demanding conditions. The lightweight and heat-resistant construction helps maintain performance while keeping the system strong and durable over time. Like every product in the Dr. Jekill & Mr. Hyde range, the Track Series is made with attention to detail and craftsmanship at every step of the process. This commitment to quality is also reflected in our 4-year warranty, giving you confidence that your exhaust system is built to last. Because while the Track Series offers a different kind of sound experience, our standards for quality never change.

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pure and uncompromised sound. No Smartbox intervention

Unlike Dr. Jekill & Mr. Hyde's Street systems, the Track Series operates without Smartbox intervention. In our street exhausts, the Smartbox software automatically manages the valve position to ensure compliance with road regulations. The Track Series is built with a different philosophy. By removing this regulatory software layer, the system delivers a more direct and unrestricted riding experience.

The electronically adjustable valve remains fully functional, allowing you to switch between three distinct sound modes — from silenced and subtle to deep and fully unleashed — but without electronic intervention aimed at meeting road homologation requirements.

The result is exactly what the Track Series was developed for: pure sound, pure performance, and maximum rider control. A raw and uncompromised sound experience, for riders who want freedom without compromise. Exclusively available through Motorcycle Storehouse.

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check it out live! Bagger Racing League

Meet the Dr. Jekill & Mr. Hyde Track Series live at two of the 2026 BRL Europe races. Experience pure, uncompromised sound and performance up close at Cremona and Nürburgring.

Dates & locations
R01 – MAY 23 / 24 – CREMONA CIRCUIT (ITA) 
R03 – SEPTEMBER 5 / 6 – NÜRBURGRING (GER)

track seriesCompatible models

The Track Series is available for a wide array of Harley-Davidson Touring models.

Road Glide – 2017-2019, 2024-2026
Street Glide – 2017-2019, 2024-2026
Road Glide ST – 2023
Street Glide ST – 2023
Electra Glide Highway King – 2023
Street Glide Special – 2017-2023
Electra Glide Revival – 2021
Electra Glide Ultra Classic – 2017-2020
Electra Glide Standard Police – 2018-2023
Electra Glide Ultra Limited Low – 2017-2020
Electra Glide Standard – 2019-2020
Road King – 2017-2020
Road King Special – 2017-2025
Road King Classic – 2017-2019

Road King Police – 2017-2020
Road Glide Ultra – 2017-2019
Road Glide Limited – 2020-2024
Road Glide Special – 2017-2023
Ultra Limited – 2017-2024
Ultra Limited Low – 2017-2020
CVO Road Glide ST – 2024-2026
CVO Road Glide 121 – 2023-2025
CVO Street Glide 121 – 2023-2025
CVO Road Glide Limited – 2022-2023
CVO Street Glide 117 – 2018-2022
CVO Road Glide – 2018-2022
CVO Limited – 2017-2022
CVO Street Glide 110-114 – 2017
CVO Ultra Limited Screamin Eagle – 2018-2019
CVO Road Glide 114-117 – 2017-2021

Maximum Sound. Minimum Restraint. Dr. Jekill & Mr. Hyde’s Track Series: Key Benefits  

The Dr. Jekill & Mr. Hyde Track Series is built for riders who want pure and raw sound. Designed for track use, this system focuses on maximum riding experience without road regulations limiting the exhaust. With electronically adjustable sound modes and high-quality European materials, the Track Series delivers powerful sound, premium craftsmanship, and full rider control.

  • Three electronically adjustable sound modes.
  • No Smartbox intervention for regulatory control.
  • Optimal exhaust flow and reduced back pressure.
  • Premium European materials and precision fit.
  • 4-year warranty.

Order now at Motorcycle Storehouse

Dr. Jekill & Mr. Hyde’s Track Series is exclusively available through our partner Motorcycle Storehouse. As Europe’s leading distributor of V-Twin and custom parts, they bring a strong dealer network and deep industry expertise, helping us reach more workshops, builders, and riders than ever before.