It’s all about the performance, look and feel with the powerful lineup of Screamin’ Eagle® Stage Upgrades. Whether you’re looking to enhance the look and sound of your motorcycle or get the absolute best performance upgrade available, a Stage I Upgrade is the foundation for any performance boosts you do.

You’re on your way to bigger and better things with your new Screamin’ Eagle® Performance Upgrades. Picking a new intake is the first step of your Stage I foundation, so choosing the right air cleaner to maximize your customization – including matching your style – is key. Options range from a raw, exposed look to our new Screamin’ Eagle® Heavy Breather Extreme and Screamin’ Eagle® Extreme Ventilator Air Cleaners - designed especially for larger displacement engines.

All Screamin’ Eagle® Air Cleaners allow for unobstructed airflow to your engine for up to a 10%* increase in performance over stock with a Stage I upgrade. Choose the ideal air cleaner for your engine from the style options available: Heavy Breather Extreme, Extreme Ventilator, Round or Wedge. Then, select from the finish and performance categories available and blow away the competition with your Screamin’ Eagle® Upgrade.

*Dynamometer settings, motorcycle condition, variation, climate and other factors can affect performance output and can vary from the performance values declared by Harley-Davidson. Stage upgrades retain the Motorcycle Original Equipment Manufacturer’s Warranty.
Boosting the horsepower, torque, sound and overall performance of your Harley-Davidson motorcycle has never been easier with the Screamin' Eagle Stage Kits. Numbered 1 through 4, these Kits are designed to give you bolt-in, tested and proven power upgrades to the standard Harley-Davidson motor line up. And our Parts and Service teams are here to walk you through your next upgrade.
Looking for more inspiration? Check out this collection of articles about Customizing Your Harley-Davidson Motorcycle.