BOSAL099-789catalyst converter£134.99
Compare Audi A3 catalyst converter from trusted brands — check fitment by engine
Popular Catalyst converter parts at great prices.
Finding the right catalyst converter for your Audi A3 is essential for safe and reliable driving. We stock 108+ options from 9+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.
When choosing catalyst converter for your Audi A3, consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.
All catalyst converter listed on this page are confirmed compatible with Audi A3. Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.
Common original equipment numbers linked to stocked alternatives.
