For the rider demanding no-compromise performance. This 117ci to 131ci Stage 4 Kit was engineered by the pros at Harley-Davidson to deliver instant arm-stretching torque through the entire rpm range. Made for riders seeking maximum displacement, compression, and flow, it delivers 131 horsepower and 139 ft-lb of torque to the rear wheel! This Stage IV Kit features the finest Screamin Eagle components. Many of these new components were informed by extensive testing by the Harley-Davidson Factory Racing Team for the King of the Baggers racing series. The Stage IV kit consists of: All-new Screamin' Eagle Extreme CNC-ported cylinder heads, 68mm throttle body and new cast 68mm intake manifold, new SE8-550 high-lift cam and 6.8 g/sec fuel injectors work together to feed the engine large volumes of air and fuel to help maximize power. New forged high-compression pistons and rings are designed to withstand increased combustion forces. Also includes high-performance tappets and new patent-protected 4.31" steel sleeve cylinders. Screamin’ Eagle and Stage 4 badging on the cylinder heads and timer cover highlights the powerplant.

Key Features

• Black Highlighted
• We’ve done your homework - Engineered and tested as a complete collection of high-performance components by the Screamin’ Eagle® pros at Harley-Davidson
• This combination is designed for wide open throttle along with high end RPMs and a significant torque increase from a cruising speed
• Provides thrilling acceleration when twisting the throttle
• Can be installed without removing the engine from chassis
• Screamin Eagle products are not available for sale and are not street legal in all countries. Please contact your local dealer for more information

Fitment

Fits '24 FLHX Street Glide and FLTRX Road Glide  models. Requires ECM recalibration with Pro Street Tuner for proper installation.