Screamin’ Eagle 128 & 131 Stage IV Kits | Harley-Davidson

Torque. Horsepower. Pavement-pounding muscle. Get the amplified powertrain performance you crave. Screamin’ Eagle® components unleash the thrilling acceleration, raw passing power and menacing exhaust note that transform stock bikes into adrenaline-pumping machines. Go big or go home. These kits are designed to deliver maximum horsepower – all the way to the redline. They’re also designed to run wide open at high-end RPMs and provide a significant boost of torque from cruising speed. You’ll feel the diffe