Harley-Davidson is a renowned motorcycle manufacturer, and its line-up of bikes is widely recognised for their superior performance and unrivalled styling. One of the ways riders can boost the performance of their Harley is by installing a Stage kit. Harley-Davidson offers four different Stage kits, labelled Stage I through IV, each with its own unique set of benefits. In this article, we will explore the differences between the different Harley-Davidson Stage kits, so you can determine which kit is best for you.
Stage I
The Harley-Davidson Stage I kit is the most basic of the four kits and is the perfect starting point for those who want to upgrade their bike’s performance. The kit includes a high-flow air cleaner, a free-flowing muffler, and a tuning upgrade. These upgrades allow your engine to breathe easier, which results in increased power and torque.
The Stage I kit is a great option for riders who want to add a little more oomph to their Harley without making major modifications. The kit is easy to install, and it’s compatible with most Harley-Davidson models.
Harley-Davidson Screamin Eagle Stage I
Stage II
The Harley-Davidson Stage II kit is a step up from the Stage I kit and is designed for riders who want to take their Harley’s performance to the next level. The kit includes a larger bore throttle body, high-lift cams, and a high-performance clutch spring.
The Stage II kit is perfect for riders who are looking for more power and torque in the mid to high range. The kit provides a significant increase in horsepower and torque, which makes for a more exciting and exhilarating ride.
Harley-Davidson Screamin Eagle Stage II
Stage III
The Harley-Davidson Stage III kit is designed for riders who want to take their Harley’s performance to the extreme. The kit includes high-compression pistons, a high-performance camshaft, and a free-flowing exhaust system. The Stage III kit is not for the faint of heart and is only recommended for experienced riders who want the most performance out of their Harley.
The Stage III kit delivers a significant increase in horsepower and torque, which results in an aggressive and powerful ride. However, the kit requires additional modifications, such as a high-performance clutch and a new ECM calibration, to ensure that the bike runs smoothly.
Harley-Davidson Screamin Eagle Stage III
Stage IV
The Harley-Davidson Stage IV kit is the most powerful kit offered by Harley-Davidson and is designed for riders who demand the ultimate in performance. The kit includes a high-performance engine kit, high-flowing cylinder heads, and a high-performance clutch.
The Stage IV kit provides a significant increase in horsepower and torque across the entire power band, resulting in the ultimate riding experience. The kit requires extensive modifications, such as a high-performance fuel system and a new ECM calibration, to ensure that the bike runs smoothly.
Harley-Davidson Screamin Eagle Stage IV
Wrap Up
Harley-Davidson offers four different Stage kits that range from basic upgrades to extreme modifications. Each kit delivers significant increases in horsepower and torque, but they are designed for different types of riders. The Stage I and Stage II kits are perfect for riders who want to add a little more performance to their Harley without making major modifications. The Stage III and Stage IV kits are designed for riders who want the ultimate in performance and are willing to invest in extensive modifications to achieve it. Ultimately, the kit you choose will depend on your riding style and the level of performance you desire.