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Stihl BR 500 vs BR 450 - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Stihl BR 450 and the Stihl BR 500.

But before checking out these explanations, here's a table that summarizes the main pros of each of these 2 leaf blowers:

Stihl BR 450	Stihl BR 500 (DISCONTINUED)

Higher CFM Higher MPH Bigger fuel tank	Less noisy 4-Mix engine
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Feel, Fuel & Noise

Manufactured by Stihl, both the BR 450 and the BR 500 should uphold similar standards of quality and attention to detail.

Engineered as backpack blowers, these two products feature sizeable engines and large fuel tanks, ensuring comfortable carrying during operation. Both products have their throttle located on the tube of the blower, which allows you to keep your left hand free.
Both products, gas blowers, offer a swift refill system, saving you time on refueling and allowing you to efficiently manage large outdoor spaces.
With 23.4 lbs versus 22.5 lbs, the Stihl BR 450 is only marginally heavier, and the small gap in weight is unlikely to make a noticeable difference in fatigue or maneuverability.
The Stihl BR 450 emits a noise level of 77 dB, significantly louder than the 65 dB of the Stihl BR 500. This difference means that the latter will provide a much quieter experience for you and be less likely to disturb your neighbors.

CFM & MPH

Comparatively, the Stihl BR 450 boasts a CFM of 695, surpassing the 544 CFM of the Stihl BR 500, positioning it as the more effective choice for clearing leaves in a shorter amount of time.
With an MPH of 233, the Stihl BR 450 moderately surpasses the 208 MPH of the Stihl BR 500, offering slightly superior airspeed for enhanced performance in blowing leaves on grass or lifting heavy debris and wet leaves.

Engine specs

The Stihl BR 450 features a larger fuel tank, offering 57.5 fl.oz. compared to the 47.3 fl.oz. of the Stihl BR 500. As a result, you have the advantage of storing more fuel, potentially extending runtime, assuming similar fuel consumption rates for their engines.
In comparison, the Stihl BR 450's engine displacement of 63.3 cc is slightly surpassed by the 64.8 cc of the Stihl BR 500. This indicates that the latter may consume marginally more fuel per stroke, potentially resulting in slightly greater power output. Each of these blowers requires a fuel/oil mix to operate, as the Stihl BR 450 features a 2-stroke engine, and the Stihl BR 500 is powered by the Stihl 4-Mix 4-stroke engine.