Genuine OEM Audi Pre-Catalyst Seal, part number 05L131547G. This seal is crucial for creating a tight, leak-free connection in the exhaust system, specifically positioned before the catalytic converter. It ensures proper exhaust gas flow and prevents harmful emissions from escaping prematurely. Measuring approximately 113mm in length and width, with a thickness of 18mm, this genuine OEM seal guarantees a precise fit and high-temperature resistance, vital for the integrity of the exhaust system.