It's all about the performance, look and feel with the powerful lineup of Screamin' Eagle® Stage Upgrades. No longer will you have to experience all the trial-and-error that comes with your bike's engine modifications. Engineered to generate specific torque and horsepower gains, our Stage Upgrades improve each mile of your ride.
***NEW PRODUCT RELEASE!***
Our new 2020 M8 Screamin' Eagle Stage IV kits will satisfy even the most hard-core performance junkies! Take your Stock 107 to 128 cu.in. or your Stock 114 or 117 to 131 cu.in. - Warranty Compliant! Book a personalized Customization Package to maximize your performance in 2020!