The Harley-Davidson Street Glide model set the world standard for the stripped-down, hot rod look. Its style is often copied, but never duplicated. The all-new Milwaukee-Eight 107 engine backs up the look with massive torque. The ride is unmatched as well, thanks to the all-new suspension and Reflex Linked Brembo brakes. The Street Glide features the BOOM! Box 4.3 Radio that puts out 25 watts per channel. When it comes to the Street Glide motorcycle, nothing else comes close. Since the beginning, Harley-Davidson motorcycle riders have felt the pull to amp up their powertrain performance. Greater acceleration, increased passing power, or just more of that rip roaring, raw Harley-Davidson exhaust sound. Building a performance engine can be intimidating, but you don't have to start from scratch. A factory-engineered Screamin' Eagle Stage upgrade is the place to start with complete, street compliant performance configurations for the increased torque and horsepower you are looking for.