Performance

 

SCREAMIN' EAGLE
It's all about the performance, look and feel with the powerful lineup of Screamin' Eagle® Stage Upgrades. No longer will you have to experience all the trial-and-error that comes with your bike's engine modifications. Engineered to generate specific torque and horsepower gains, our Stage Upgrades improve each mile of your ride.

SCREAMIN' EAGLE STAGE I FOR MILWAUKEE-EIGHT: INTAKE + EXHAUST + TUNING UPGRADE
Ideal for riders that want to enhance the performance, look & sound of their motorcycle.

THE BASICS

  • Most cost-effective step to improve performance and the foundation for future performance upgrades.
  • Match any Screamin' Eagle® high-flow air cleaner and exhaust, along with the proper ECM calibration to increase the air flow into and out of the engine.
  • THE PERFORMANCE
  • The rider will feel up to a 10%* increase in performance throughout the entire RPM range.

SCREAMIN' EAGLE STAGE II FOR MILWAUKEE-EIGHT: STAGE I + PERFORMANCE CAMSHAFT
Torque Kit: Ideal for riders looking for instant passing power at cruising speeds.
Power Kit: Ideal for riders who want to feel the power build and pull all the way to the redline.

THE BASICS
Choose a TORQUE CAM or POWER CAM based on riding style.
A performance cam increases both the lift in the valve train (pushing the valve open further) and the duration of the valve opening (how long the valve stays open).
THE PERFORMANCE:

TORQUE CAM: 

  • The rider will feel up to a 15%* increase in performance in the low- to mid- RPM range
  • Experience crisp throttle response and acceleration that can be felt at slower speeds, perfect for passing slow-moving vehicles without downshifting.
POWER CAM:

  • The rider will feel up to a 25%* increase in performance in the mid- to upper- RPM range.
  • Experience an adrenaline-pumping burst of speed while heading towards the red line.

SCREAMIN' EAGLE STAGE III FOR MILWAUKEE-EIGHT: STAGE II + BIG BORE CYLINDERS + PISTONS
Ideal for riders who want the largest engine displacement and increased power throughout the entire RPM range.

THE BASICS
An increase in engine displacement allows the engine to swallow more air and fuel, a higher compression piston squeezes the air and fuel into a more volatile mixture and when combined, generates more power when ignited.
Displacement increases are accomplished with larger cylinders, matching pistons, and the proper cam upgrade.
THE PERFORMANCE
Riders will experience a performance increase throughout the entire RPM range, with up to a 35%* increase in the mid- to upper- RPM range.
Produces instant passing power without downshifting.
Delivers excellent stoplight to freeway speed and on-ramp acceleration.

SCREAMIN' EAGLE STAGE IV FOR MILWAUKEE-EIGHT: STAGE III + CYLINDER HEADS + THROTTLE BODY
Ideal for riders who want the absolute best performance upgrade available.

THE BASICS
Highest level performance upgrade available to provide a maximum increase in displacement, compression, and flow.
Higher-flowing CNC ported cylinder heads and larger bore throttle body increase the velocity and feed large volumes of air and fuel into the engine, which maximizes power on a larger displacement engine.
Combines ported cylinder heads and larger throttle body in combination with cylinders, matching pistons, and proper cam.
THE PERFORMANCE
The rider will feel exceptional acceleration, delivering significant gains and up to a 40%* increase in the higher RPM range.

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