Upgrade Kits

Upgrade Kits

 Pfaff Harley-Davidson® in Richmond Hill, Ontario, serves a wide area, spanning from Toronto in the south to Georgina in the north, Etobicoke and King to the west and Whitchurch-Stouffville to the east. We sell genuine Harley-Davidson® motorcycles, and our professional, factory-trained technicians provide the best possible service. 

It’s all about the performance, look and feel with the powerful lineup of Screamin’ Eagle® Stage Upgrades. Whether you’re looking to enhance the look and sound of your motorcycle or get the absolute best performance upgrade available. Stages I-IV offer complete street-compliant performance configurations engineered to generate specific torque and horsepower gains. Eliminating all the guesswork and trial-and-error testing normally associated with engine modifications

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INTRODUCING STAGE I 

A Stage I upgrade is ideal for riders that want to enhance the performance, look & sound of their motorcycle. 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 rider will feel up to 10% increase in performance over stock throughout the entire RPM range

INTRODUCING STAGE 2

This kit was developed for the budget minded rider that wants to experience crisp throttle response and acceleration they can feel at slower speeds. The 5% increase in torque can be felt immediately off the line and continues to build by up to a 14% increase @ 4500 RPM - the ideal power band for passing slow moving vehicles.

introducing stage 3

This Stage III kit has been developed for the rider looking for a solid “seat of the pants” increase you can feel every time you roll on the throttle. The bump up in displacement and compression deliver a significant increase in torque and power over stock, all the while restoring the sensation of riding solo when you’re loaded down. 

introducing stage 4

Go big or go home. With the largest displacement of any Harley-Davidson® Stage Kit, this 114CI to 131CI Stage IV Kit is 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. Features new CNC-ported heads with 1mm bigger valves and fully machined combustion chambers.

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