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Stihl BR 450 C-EF Spec Sheet

Picture 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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According to Stihl's Internet Sales Policy and to the reasons mentioned in their blog, 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.

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

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. Should you wish more detailed specs on the Stihl BR 450 C-EF, the user manual is available here.

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

  • Power: The BR 450 C-EF, built by Stihl, is a gas-powered leaf blower capable of expelling a maximum air volume of 642 cubic feet per minute (CFM). Its air speed is rated at 221 MPH.
  • Handling: As this unit is a backpack leaf blower, the majority of the unit is distributed so that the user can operate it with ease for most reasonable periods of use. Its throttle is located on the tube, which allows you to keep your left hand free. However, for a gas-powered backpack blower, the Stihl BR 450 C-EF is heavier than most, weighing 25.4 lbs.
  • Engine: This blower's 2-Mix engine has a displacement specification 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. According to Stihl, the proper fuel mixture ratio for this blower is 50:1. You can find more information about Stihl's 2-Mix engine technology below.
  • Speed Settings: Thanks to its variable speed settings, the Stihl BR 450 C-EF allows precise control of the air output.
  • Noise: As far as gas-powered backpack blowers go, this one is average in terms of noise with a rating of 77 dB.
  • Fuel Tank: It has an average fuel capacity, with a tank able to hold around 57.5 fl. oz of fuel.
  • 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™ (also called “ErgoStart”) 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.

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.

  • Forced air exiting this blower has been clocked at a max speed of 221 MPH. This puts the BR 450 C-EF ahead of the pack as far as air speed is concerned in gas-powered backpack blowers (the one expelling air at the fastest speed being the Husqvarna 150BT with 251 MPH).
  • Regarding its air volume, 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 Echo PB-8010H with 1071 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.

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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