MagnaFlow Conv DF 01-03 Audi S8 4.2L Driver Side

When your 2001-2003 Audi S8's check engine light comes on, and you suspect it's the catalytic converter, replacing it with a direct-fit unit like this one from Magnaflow is a solid plan. This converter is designed to keep your vehicle compliant with federal emissions standards, ensuring your S8 runs cleanly and avoids trouble with emissions testing.

Magnaflow builds this converter with free-flowing, mandrel-bent tubing and uses highly corrosion-resistant stainless steel for the construction. This means it's built to last and won't restrict exhaust flow more than the original part. They replicate the original equipment design closely, using a single laser fusion weld to minimize the chance of leaks. The compact, low-mass design also helps with thermal efficiency, getting the converter up to operating temperature quickly.

Since this is a direct-fit unit, it's designed to install without cutting or welding, making the job much simpler with the right tools. It interchanges with several OE part numbers, so you can be confident it's made to fit your specific S8.