Stihl BR 450 VS BR 600 - Spec & Feature Comparison

Further down the page, you'll find some explanations regarding the key similarities and differences between the Stihl BR 450 and the Stihl BR 600.

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 600

Bigger fuel tank	Higher CFM Higher MPH Lighter Less noisy 4-Mix engine
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Common specs comparison

Belonging to the line of Stihl blowers, both the BR 450 and the BR 600 should have a shared standard of manufacturing and attention to detail. Both products have their throttle located on the tube of the blower, which allows you to keep your left hand free.
Engineered as backpack blowers, these two products feature sizeable engines and large fuel tanks, ensuring comfortable carrying during operation.
Both products are gas-powered blowers, providing a reliable power source that can be refilled in seconds, granting you the flexibility to navigate through expansive outdoor areas effortlessly.

The Stihl BR 600 with a CFM of 677 slightly exceeds the 642 CFM of the Stihl BR 450. Thus, in comparison, you may find that the former is able to move more leaves per minute.
The Stihl BR 600 with an MPH of 238 slightly exceeds the 219 MPH of the Stihl BR 450. Thus, in comparison, the former expels air at a slightly higher speed, and should do a better job at blowing leaves on grass or lifting wet leaves and debris (acorns, etc.).

Weighing 23.4 lbs, the Stihl BR 450 tips the scales slightly above the 21.6 lbs of the Stihl BR 600, implying that while it's marginally heavier, users may still experience a touch more convenience in operation.
Although the difference in noise rating between the Stihl BR 450, registering at 77 dB, and the Stihl BR 600, at 75 dB, appears minor, it can impact both the operator's experience and nearby neighbors.

The Stihl BR 450 boasts a larger fuel tank capacity, with 57.5 fl.oz., surpassing the 47.3 fl.oz. of the Stihl BR 600. Consequently, you can store more fuel, potentially extending operational time, assuming similar engine fuel consumption rates.
In comparison, the Stihl BR 450's engine displacement of 63.3cc is slightly surpassed by the 64.8cc of the Stihl BR 600. 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-cycle engine, and the Stihl BR 600 is powered by the Stihl 4-Mix 4-stroke engine.