Characteristics Of The Stihl BR 450 C-EF

The Stihl BR 450 C-EF is a gas-powered backpack leaf blower delivering 642 CFM at 221 MPH. It features a 2-cycle 63.3 cc engine.
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Features and Specifications

Type

Type Gas-Powered
Handling Backpack
CFM Up to 642
MPH Up to 221
Blowing Force 28 N

Engine

Make 2-Mix
Engine Displacement 63.3 cc
Strokes 2
Speed Settings Variable

Features

Cordless Yes
Fuel Tank 57.5 fl. oz.
Vacuum No
Mulcher No

Misc

Weight 25.4 lbs
Noise Rating 77 dB
Tube Length N/A
Warranty 2 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

Description

Overview of the Stihl BR 450 C-EF

  • Power: The Stihl BR 450 C-EF is a gas-powered leaf blower. It sports a max air speed of 221 MPH and a max air volume rating of 642 cubic feet per minute (CFM).
  • Handling: Like most backpack blowers, this model is technically heavier than a handheld. That being said, it can feel lighter and more comfortable because of the way it is carried, even when used over extended periods of time. However, for a gas-powered backpack blower, the Stihl BR 450 C-EF is heavier than most, weighing 25.4 lbs.
  • Engine: Its 2-Mix engine boasts a displacement of 63.3 cc. Please note that, because the Stihl BR 450 C-EF’s engine is a 2-cycle one, it runs on a mixture of oil and gasoline. Your user manual includes details on the proper ratio. You can find more information about Stihl's 2-Mix engine technology below.
  • Speed Settings: For those who are keen on having complete control while operating their leaf blower, the BR 450 C-EF offers variable speed settings.
  • Noise: With a noise rating of 77 dB, this blower can be considered the standard for similar gas-powered backpack blowers.
  • Fuel Tank: With a capacity of 57.5 fl. oz., this Stihl blower is average when compared to other gas-powered backpack leaf blowers.
  • Easy2Start™: The BR 450 C-EF has the letter “E” in its name, which is Stihl’s indication that it benefits from Stihl’s proprietary Easy2Start™ technology. As the name suggests, this technology makes the starter mechanism more reliable thanks to an additional spring between the crankshaft and the starter rope. Upon pulling the starter rope, the engine will attempt to start regardless of how hard the rope was pulled – even a simple two-finger pull is sufficient to start it. Easy2Start™ allows the BR 450 C-EF to be started with remarkably less effort than most other blowers.

The Stihl BR 450 C-EF's performance versus other blowers

The following charts are provided to give you an idea how the key specs of the Stihl BR 450 C-EF compare with similar leaf blowers.

  • Air exiting the nozzle of this blower can reach 221 MPH, which is quite a bit faster than most gas-powered backpack leaf blowers (the one expelling air at the fastest speed being the Husqvarna 150BT with 251 MPH).
  • Regarding its power, the airflow of the Stihl BR 450 C-EF can reach 642 CFM (Cubic Feet per Minute), which is on par with other gas-powered backpack leaf blowers (the biggest expelled air volume belonging to the Stihl BR 700 with 912 CFM).

2-Mix Engine Technology

Stihl's 2-Mix engine is a more eco-friendly and powerful approach to the traditional 2 stroke engine. It features what Stihl calls "stratified scavenging", which simply means that a layer of air is created between the combustion chamber and the crankcase. This action allows the engine to separate fresh fuel from the exhaust, which in turn minimizes the scavenging losses and eliminates the components of the mix that pose a health and environmental hazard (compliant with European Emissions Directive, Stage II). The 2-Mix engine offers a high torque over a wide speed range, a fuel consumption up to 20% lower than conventional 2-cycle engines, and fewer harmful emissions.

The bottom line

STRENGTHS:
  • Easy2Start™ Technology
  • 2-Mix Engine
  • High MPH (221 MPH)
AVERAGE SPECS:
  • Decent Tank (57.5 fl. oz.)
  • Acceptable Noise (77 dB)
  • Decent CFM (642 CFM)
WEAKNESSES:
  • Quite heavy (25.4 lbs)

Do you own the Stihl BR 450 C-EF and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Product Video

About Stihl

Stihl AG & Company KG was founded by Andreas Stihl in 1926. The German company specializes in handheld outdoor power equipment. Over the past fifty years, Stihl has opened manufacturing plants in Brazil, the United States, and China. The German company’s sure and steady expansion has made it a leading provider of in the lawn, forestry, and landscape maintenance industries.

Warranty Information

The Stihl BR 450 C-EF is covered under a warranty for up to 2 years. This warranty may not cover all parts of the blower.
For more information about the warranty of Stihl blowers, please consult Stihl's warranty policies. Alternatively, you can also contact their Customer Support: 1-800-467-8445
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