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Stihl BR 600 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 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

Higher CFM Bigger fuel tank	Higher MPH Less noisy 4-Mix engine

Feel, Fuel & Noise

Manufactured by Stihl, both the BR 450 and the BR 600 should uphold similar standards of quality and attention to detail.

Manufactured as backpack blowers, these two products are equipped with large engines and spacious fuel tanks, offering comfortable carrying while you work. The throttle for both products is conveniently placed on the blower's tube, freeing up your left hand for other tasks.
gas-powered blowers, both products offer a dependable power source that can be refilled quickly, allowing you the mobility to cover extensive outdoor spaces without interruption.
At 23.4 lbs compared with 22.3 lbs for the Stihl BR 600, the weight difference is minimal, so either option should feel nearly the same in day-to-day use.
Though the difference in noise levels between the Stihl BR 450, rating 77 dB, and the Stihl BR 600, standing at 75 dB, may seem insignificant, it could affect both the operator's comfort and nearby residents' tranquility.

CFM & MPH

While the difference is slight, the Stihl BR 450's CFM rating of 695 marginally outpaces the 677 CFM of the Stihl BR 600, potentially resulting in a subtle improvement in leaf-clearing performance.
The Stihl BR 600 with an MPH of 238 slightly exceeds the 233 MPH of the Stihl BR 450, making it more effective at blowing leaves on grass or lifting wet debris (acorns, etc.).

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 600. As a result, you have the advantage of storing more fuel, potentially extending runtime, assuming similar fuel consumption rates for their engines.
In contrast, the Stihl BR 450's engine, with a displacement of 63.3 cc, is slightly surpassed by the 64.8-cc engine of the Stihl BR 600. As a result, the latter may consume marginally more fuel per stroke, potentially resulting in a slight power advantage. 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 600 is powered by the Stihl 4-Mix 4-stroke engine.