Screamin' Eagle Stage IV Kit 128ci black/highlighted

Art no.: 92500078
incl. tax, plus shipping costs. 

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 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 wide open 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. When installed by an authorized Harley-Davidson Dealer within 60 days of the vehicle purchase, compliant kits do not impact the vehicle’s limited warranty. Kit includes: CNC Ported Cylinder Heads with CNC machined chamber and 1mm larger valves L93, Stage IV Timer Cover, SE8-517 High-Lift Cam, Forged High Compression Pistons, High Performance Cam Bearing, Tappets, 4.31" Steel Sleeve Cylinders, 64mm Throttle Body and Cast Manifold and High Flow Injectors (5.5 g/sec).

  • Stage IV Kit - 114CI to 128CI for Oil-Cooled models
  • Delivers increased response throughout the entire RPM range
  • Provides thrilling acceleration when twisting the throttle
  • Maintains flat torque curve from cruising RPM to redline
  • Can be installed without removing the engine from chassis
  • Retains Original Equipment Factory Warranty
  • 49-State U.S. EPA Compliant on '17-later Touring models
Note
Fits Harley-Davidson '17-later Touring models equipped with air/Oil-Cooled Milwaukee-Eight 107CI engine. Does not fit Trike models. '17-'19 models require separate purchase of High-Capacity Oil Pump P/N 62400247. '17-'18 Screamin' Eagle High-Capacity Clutch Plate Kit P/N 37000258. Not for use with Screamin' Eagle High-Flow Exhaust Systems with Street Cannon Mufflers. All models require ECM recalibration
  
* incl. tax, plus shipping costs.
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