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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.

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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
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 gas-powered blower, manufactured by Stihl, is rated for a max air volume of 642 cubic feet per minute (CFM) and a max air speed of 221 MPH.
  • Handling: By design, this model isn’t the smallest leaf blower on the market. It’s meant to be carried as a backpack so that the bulk of the unit is out of the way and the user’s hands are free to manipulate the nozzle. 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: This blower is fitted with a 63.3 cc 2-Mix engine. 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: 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 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: 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™ (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).
  • 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 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?

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Where to buy the Stihl BR 450 C-EF?

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.

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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