Principles of performance
Nobody says "No" to more
torque & horsepower
Since the beginning, Harley-Davidson® motorcycle riders have felt the pull of amped up powertrain performance.
Screamin’ Eagle® components are the key to greater acceleration, increased passing muscle, and more of that rip roaring raw exhaust note that makes power more than a little addicting.
Path to performance
Move More air & fuel
Give it a lift
Pump up the volume
Top it off
STAGE III + CYLINDER HEADS + THROTTLE BODY
Now that you’ve got the volume, use it the right way. By adding high-flowing ported and matched upper-end components to the bigger engine you can make sure you’re moving as much air and fuel as the engine can take. This stage adds more horsepower to the already impressive Stage III upgrade.
Maximize your horsepower – not the labor. Similar to Stage III, upgrade requires removing the engine’s top end and swapping the cam. The engine remains in the chassis and no machining or custom fitting is required. Special tools and ECM tuning are require.