Harley-Davidson Intros New Screamin’ Eagle IV Kits

The Eagle Has Landed

The Harley-Davidson Screamin’ Eagle high-flow exhaust kits, performance cams, powerful Screamin’ Eagle engines and a comprehensive line of upgrades ramp up the power for your ride.

Go big or go home. With the largest displacement of any Harley-Davidson Stage Kit, this 114/117CI to 131CI Stage IV Kit was designed to deliver maximum horsepower – all the way to the redline. Packaged with patent-protected cylinder technology, it allows for the largest Harley-Davidson® bolt-on engine upgrade to any Milwaukee-Eight motor. Features new CNC-ported heads with 1mm bigger valves than the previous generation, and fully machined combustion chambers. Coupled with the kit’s high-lift SE8-517 cam, high compression pistons and a 64mm throttle body and intake manifold, this combination delivers a thrilling 131 ft-lb of torque and 121 HP rear-wheel output when paired with Screamin’ Eagle Street Cannon Mufflers. It’s designed to run at high-end RPMs and provide a significant boost of torque from cruising speed. You’ll feel the difference as soon as you twist the throttle.

This Stage IV Kit was designed to deliver maximum horsepower – all the way to the redline. Features new CNC-ported heads with 1mm bigger valves than the previous generation, and fully machined combustion chambers. Coupled with the kit’s high-lift SE8-517 cam, high compression pistons and a 64mm throttle body and intake manifold, this combination delivers a thrilling 126 ft-lb of torque and 121 HP rear-wheel output when paired with Screamin’ Eagle Street Cannon Mufflers. It’s designed to run at high-end RPMs and provide a significant boost of torque from cruising speed.
Both the 131CI and 128CI Stage IV Kits comply with noise and emissions standards in all U.S. states other than California on 2017-later Touring Models. Street-compliant statements may not apply to markets outside the United States. The 131CI Stage IV Kit fits ’17-later Touring models equipped with Twin-Cooled Milwaukee-Eight 114CI or 117CI engine. The 128CI Stage IV Kit fits ’17-later Touring models equipped with Twin-Cooled Milwaukee-Eight 107CI engine. Neither kits fit Trike models.