Genuine OEM Audi Exhaust System Mounting Strap, part number 4H0253295. This metal strap is designed to securely mount and support a component within the exhaust system on the left side, preventing movement and reducing vibration. Choosing a genuine OEM mounting strap ensures the correct material strength, precise dimensions, and resistance to high exhaust temperatures and corrosion, which are critical for maintaining the integrity and longevity of the exhaust system.