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Stihl BR 450 C-EF Spec Sheet

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. (Read full specs)

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Stihl BR 450 C-EF 642 CFM Gas Backpack Blower
Stihl BR 450 C-EF 642 CFM Gas Backpack Blower
According to Stihl's Internet Sales Policy (opens in a new tab) and to the reasons mentioned in their blog (opens in a new tab), it is not possible or recommended to buy a NEW Stihl product online in the USA. The only way to buy the Stihl BR 450 C-EF online is to get it second hand or refurbished on eBay. Online stores such as Acme Tools and Ace Hardware (links below) only allow in-store purchase and pickup of Stihl products.

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
Fuel/oil ratio 50:1
Speed settings Variable
Features
Throttle positionTube
Cruise controlYes
Fuel tank 57.5 fl. oz.
Vacuum No
Misc
Weight 25.4 lbs
Noise rating 77 dB
Tube length N/A
Warranty 2 years
CARB-compliantYes

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. Should you wish more detailed specs on the Stihl BR 450 C-EF, the user manual is available here (opens in a new tab).

Description

The hassle of starting and stopping backpack blowers is a reality for professional landscapers. The STIHL BR 450 C-EF backpack blower with Electric Start changes all that. No more idling while walking to the next job or removing the unit to restart. And once it’s started, you can expect tremendous blowing power – exceeding that of BR 550. With a large fuel tank, semi-automatic choke system, and easily adjustable tube length and control handle position; this is the ultimate blower for pros on the go. (source: Stihl)

Overview of the Stihl BR 450 C-EF

The Stihl BR 450 C-EF in use

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. Its throttle is located on the tube, which allows you to keep your left hand free. Be aware that, at 25.4 lbs, the Stihl BR 450 C-EF is on the heavier side for gas-powered backpack blowers.
  • Engine: Its 2-Mix engine boasts a displacement of 63.3 cc. Please be aware that 2-cycle engines like this one require a mixture of gas and oil in order to run. For the Stihl BR 450 C-EF, this ratio is 50:1. You can find more information about Stihl's 2-Mix engine technology below.
  • Speed Settings: To provide more control over their job to the user, the unit has a variable speed control setting. No matter the size of the job, the user can adjust the airflow of the Stihl BR 450 C-EF to match it. On top of that, maintaining the selected speed is effortless, as it also features cruise control.
  • Noise: With a decibel rating of 77 dB, the BR 450 C-EF is neither louder nor quieter than its rivals in the gas-powered backpack category.
  • Fuel Tank: Its tank can hold 57.5 fl. oz., so it falls squarely in the average in terms of fuel capacity.
  • Electric start: The BR 450 C-EF features an electric start. Thanks to a simple press of a button on the throttle, those maintaining large properties can begin their work quickly. It also allows users to stop and start the blower while wearing it on their back.

Product Videos

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 blowers (the one expelling air at the fastest speed being the Husqvarna 150BT with 251 MPH).
  • The BR 450 C-EF is average in terms of air volume. It's rated at 642 CFM, which is common for gas-powered backpack blowers (the biggest expelled air volume belonging to the Echo PB-8010H with 1071 CFM).

Price comparison

As you can see from this interactive chart, when compared to other gas backpack blowers, the Stihl BR 450 C-EF is on the average side of the price range.

Therefore, this blower nicely fits in the expected budget for this kind of product.

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:
  • In the expected price range
  • Cruise control
  • Electric start
  • 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.

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 (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-467-8445.

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Stihl BR 450 C-EF
9.3 Total Score
1 review
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Price
7
Value
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Quality
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1 Review
  1. 4.65
    Price
    70
    Value
    100
    Quality
    100
    Performance
    100

    Great product. Highly recommend getting one. Another great Stihl product.

    + PROS: Great product, electric start is so handy. Getting on the roof and push the button. The adjustable nozzle is easy to adjust as well.
    - CONS: Spark arrestor plugs quickly.
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