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Bull Falls Harley-Davidson in Rothschild, WI

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New at Bull Falls

Scott Steuck | 01/24/2020

Horsepower and Torque Addiction??

Go big or go home. With the largest displacement of any Harley-Davidson® Stage Kit, this 114CI or 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 bolt-on engine upgrade to any Milwaukee-Eight® motor.

This kit 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 131 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.

  • 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
  • 107CI to 128CI kit also available

Call the Bull Falls service team at 715-355-4464 for more info today!!

New 'Boom' for your bike

Bull Falls Harley-Davidson now carries Rockford Fosgate premium audio systems, as well as Harley-Davidson Boom Audio systems.

Call or stop in and ask how to get more "Boom" out of your bike with one of our audio system upgrades.


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