Harley-Davidson® Sportster S
The Sportster S is compact, aggressive, and powered by the Revolution Max 1250 engine. The Apex from Dr. Jekill & Mr. Hyde finishes that attitude with a raw 2-in-1 design, electronic sound control, and a race-inspired look made specifically for the Sportster S.
The Sportster S is not built to blend in, and its exhaust should not feel like an afterthought. The Apex gives the bike a sharper profile, a deeper voice, and the premium finish expected from Dr. Jekill & Mr. Hyde.
This is not just a muffler swap. The Apex is a complete exhaust system built around the Sportster S, with the body, header, and end cap working together for a clean, powerful, factory-plus appearance.
Most exhausts lock you into one sound. The Apex gives you control. Keep it refined when leaving early, riding through neighborhoods, or pulling into town. Open it up when you want the Revolution Max engine to sound as strong as it feels.
A complete system designed around the Sportster S stance, engine layout, and aggressive side profile.
Switch between Dr. Jekill, Dynamic, and Mr. Hyde modes so the sound matches the ride.
Available with black or brushed exhaust finishes and multiple end cap choices to match your build.
Designed to fit the Sportster S cleanly, including heat shield details for comfort and a finished look.
Harley-Davidson® Sportster S models equipped with the Revolution Max 1250 platform. Built for riders looking for The Apex adjustable Sportster S exhaust with premium styling, electronic sound control, aggressive 2-in-1 design, and U.S.-based product support.
The Valve
In Dr. Jekill mode, the valve closes to keep the Sportster S more refined and controlled. It is the right setting for early starts, neighborhoods, passengers, and moments when you want the Apex exhaust to stay respectful.
Apex Component Overview
The Apex for the Harley-Davidson Sportster S is a complete electronically adjustable exhaust system, not a simple muffler change. Each component is designed to work together for fitment, sound control, heat protection, and the aggressive 2-in-1 look the Sportster S deserves.
Header, body, valve components, end cap, and shields are designed together for a true Sportster S fit.
Electronic valve technology gives you Dr. Jekill, Dynamic, and Mr. Hyde sound modes from one system.
Carbon and stainless heat shield details help protect the rider while keeping the finished look clean.
Passenger Comfort Option
The Apex gives the Sportster S a high-mounted, aggressive 2-in-1 look. The optional passenger heat shield helps make that design more comfortable when you ride two-up.
Designed specifically for the Sportster S Apex exhaust, the passenger heat shield helps protect your passenger from exhaust heat while keeping the system clean, finished, and integrated with the bike. It is a smart option for riders who want the full Apex style without giving up passenger comfort.
Harley-Davidson Sportster S Sound Check
Revolution Max 1250T
In-Stock Sportster S Exhaust
To see all the different Sportster S configurations available, visit our exhaust configurator.
Exhaust ConfiguratorInstallation Support
Watch the Dr. Jekill & Mr. Hyde Apex installation video before fitting your Harley-Davidson Sportster S exhaust system. This walkthrough helps riders and installers review the main components, setup details, and installation flow for the electronically adjustable 2-in-1 exhaust.
Why Sound Control Matters
The Sportster S is built for quick throttle response, aggressive style, and strong street presence. The Dr. Jekill & Mr. Hyde Apex gives that personality sound control, so you can keep it refined when you need to be respectful, protect your passenger from taking the full hit of exhaust volume, and open it up when the ride calls for more attitude.
Keep the exhaust quieter when leaving the house early, coming home late, or rolling through a quiet neighborhood.
When riding two-up, turn the sound down so your passenger is not taking the full force of the exhaust note every time the throttle opens.
Switch to Mr. Hyde mode when you want the Revolution Max 1250T to sound sharp, aggressive, and fully awake.
Dr. Jekill, Dynamic, and Mr. Hyde modes let your Sportster S feel refined, balanced, or bold from one exhaust system.
Sportster S FAQ
Here are the most common questions about the Dr. Jekill & Mr. Hyde Apex exhaust for the Harley-Davidson Sportster S.
It depends on how your motorcycle is currently set up. Our exhaust system is designed around the stock ECM parameters of the motorcycle and does not require a tune when installed on a stock bike.
If you currently have additional performance products installed, such as engine work, intake changes, or other performance upgrades, we recommend asking your motorcycle mechanic or shop. You can also contact us and we will help point you in the right direction.
Yes. You can change the valve position and ride in any sound mode at any point in time.
Switch between Dr. Jekill, Dynamic, and Mr. Hyde mode from the rider control, giving you quiet control when you need it and a stronger exhaust note when you want it.
This system includes a catalytic converter and is designed around the stock ECM parameters of the motorcycle.
Street legality can depend on where you live and ride, so please check your local laws and requirements. If you have any questions, contact us before ordering and we can help point you in the right direction.
Please refer to the installation video online or the supplied paper instructions that come in the kit.
For a competent mechanic, installation is usually around 1 hour. Installation time can vary depending on tools, experience, and the condition of the motorcycle.
You are paying for extensive research and development, premium build quality, model-specific engineering, and the adjustability Dr. Jekill & Mr. Hyde is known for.
This is much more than a tube and baffle. The Apex is a complete electronically adjustable exhaust system with valve technology, rider-controlled sound modes, precision fitment, and premium components built specifically for the Harley-Davidson Sportster S.
There is no other motorcycle exhaust company that compares to Dr. Jekill & Mr. Hyde when it comes to combining sound control, engineering, craftsmanship, and everyday rideability in one system.
Everything needed for installation, except for tools and time, comes inside the box.
The system includes the required exhaust components, electronic valve technology, rider control components, and hardware for the selected configuration.
