Dr. Jekill & Mr. Hyde® H-D Sportster S Apex Exhaust, Wrinkle Black, Streetfighter End Cap, Black
This complete bolt-on kit includes everything needed for installation.
Includes:
- Apex Exhaust System
- Electronically Adjustable Control Kit
- Streetfighter End Cap in Black
- Carbon Heat Shield
The Dr. Jekill & Mr. Hyde® Apex Exhaust for the Harley-Davidson Sportster S is a street-legal, electronically adjustable exhaust system designed to deliver the ideal blend of sound, performance, and riding comfort. Built specifically for the Sportster S and its Revolution Max 1250 engine, the Apex adds a more aggressive sound and a premium custom look while integrating seamlessly with the bike.
With 3 selectable sound modes, you can tailor your exhaust sound to every ride:
- Dr. Jekill Mode – quiet and controlled
- Dynamic Mode – deeper, more balanced tone
- Mr. Hyde Mode – full, aggressive rumble
Designed to match the bold character of the Harley-Davidson Sportster S, the Apex combines advanced exhaust technology, premium materials, and a distinctive finish for a true performance-inspired upgrade.
Fits Harley-Davidson models:
- Sportster S (2021+)
Features:
- Street-legal exhaust system
- Electronically adjustable exhaust
- 3 selectable sound modes
- No tune required
- Wrinkle Black finish
- Carbon heat shield included
- Optional passenger heat shield available
- Stainless steel construction
- Active Smartbox technology
- Bolt-on installation
- 4-year warranty
Customize your exhaust your way using our online exhaust configurator.
Make every beat count.
HOW IT SOUNDS
INSTALLATION VIDEO
HD Sportster S // Soundcheck
USE YOUR HEADPHONES FOR THE ULTIMATE EXPERIENCE
LISTEN AND ENJOY THE THREE DIFFERENT SOUND MODES OF THE DR. JEKILL & MR. HYDE® - THE EXHAUST.
Mr Hyde
The exhaust boosts a beautiful, deep rumble.
Dynamic Mode
A tamed Mr. Hyde sound.
Dr Jekill
A calm, low-key but distinctive sound.
RESEARCH & DEVELOPMENT
At Dr. Jekill & Mr. Hyde®, innovation never stands still. Every exhaust system is born from intensive research, advanced engineering, and relentless testing under real-world and extreme conditions. Inside our state-of-the-art facility, we are constantly pushing our products harder, refining every detail, and improving every system to stay far ahead of the competition.
From sound control and valve technology to performance, durability, and long-term reliability, nothing is left to chance. Every part is tested, every system is challenged, and every improvement is driven by one goal — to build the most advanced exhaust system on the market.
Premium Quality
For over 30 years, Dr. Jekill & Mr. Hyde® has defined the standard in premium exhaust systems. German engineered and Dutch handcrafted, every system is built in Europe to deliver unmatched sound, aesthetics, and performance. Designed to withstand extreme heat, harsh conditions, and years of riding, each exhaust is rigorously tested and built using premium stainless steel and advanced Nomex packing for lasting durability. This is not your average exhaust system, this is craftsmanship without compromise.
the valve
At the heart of every Dr. Jekill & Mr. Hyde® exhaust system is the valve, the technology that makes The Exhaust truly unique. Electronically adjustable on the fly, it gives you full control over how your bike sounds, with three distinct modes that adapt to the moment. From a refined, more subtle tone with the valve closed, to a deeper, more aggressive character in Dynamic Mode, all the way to the full, uncompromising sound of Mr. Hyde with the valve wide open — you decide exactly how your bike performs and sounds every time you ride.
Need Help?
Here we answer the most common questions about Dr. Jekill & Mr. Hyde® exhaust systems.
Why is this exhaust so expensive?
Why is this exhaust so expensive?
Because it’s not just an exhaust. Dr. Jekill & Mr. Hyde® combines precision engineering, premium materials, and advanced electronic valve technology into one system. Built in Europe and tested under extreme conditions, every component is designed for performance, durability, and control.
With the ability to switch between sound modes on the fly, you’re effectively getting multiple exhaust personalities in one system — something no standard exhaust can offer. This is engineering without compromise.
Do I need to tune with this exhaust?
Do I need to tune with this exhaust?
No. Dr. Jekill & Mr. Hyde® exhaust systems are engineered to work with your motorcycle’s factory settings, so no additional tuning is required on stock applications. The system is designed to deliver optimal performance and sound without the need for remapping. If your bike has been modified, we recommend consulting your local shop or reaching out to us for guidance.
Is it difficult to install this exhaust?
Is it difficult to install this exhaust?
No. Dr. Jekill & Mr. Hyde® exhaust systems are designed to be plug and play, with a precise fit for your motorcycle and no complicated modifications required on stock applications. Installation is straightforward for any mechanically inclined person. If you are not mechanically inclined, please have the system installed by your dealer.
Where can I purchase a Jekill and Hyde exhaust?
Where can I purchase a Jekill and Hyde exhaust?
You can purchase a Dr. Jekill & Mr. Hyde® exhaust system directly from us or through one of our authorized dealers. Whenever possible, we prefer that you purchase through your local dealer to help support their business and keep their doors open. Use our dealer locator to find the closest authorized dealer near you. If you have a local dealer you prefer to work with and they are not currently a Jekill & Hyde dealer, contact us and we will work with them to arrange the sale through their shop.
