Stihl BR 350 Leaf Blower Backpack Tube Throttle 63.3cc Engine (4244-011-1608-US)STIHL BR 350 Leaf Blower Backpack Tube Throttle 63. 3cc Engine (4244 011 1608 US) When your landscape calls for professional grade tools, turn to the STIHL BR 350 backpack blower. Its powerful and fuel efficient gasoline powered engine provides enough rugged power to tackle heavy debris, while delivering exceptional fuel economy and lower emissions than previous models. The anti vibration technology enhances operator comfort during long runs, which