Genuine OEM BMW Flue Gas Hose, part number 11721744341. This hose is designed to transport exhaust gases within the vehicle's emissions system. It is typically located in the exhaust or emissions control assembly. Constructed from durable rubber, it withstands high temperatures and corrosive exhaust gases. Genuine OEM parts are critical for emissions components to ensure precise fitment and material integrity, maintaining factory-specified performance and compliance.