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The MagnaFlow OEM-grade direct-fit catalytic converter fits 2001–2003 Audi S8 4.2L passenger side applications and interchanges with OE references 4D0 131 090 RX and 4D0 254 350 BX. Mandrel-bent tubing and spun-body construction emulate OE flow while stainless steel resists corrosion and improves thermal efficiency. Designed for bolt-on installation without cutting or welding, it includes hardware and meets Federal/EPA emissions standards.
MagnaFlow Direct Fit Catalytic Converter 01-03 Audi S8 4.2L Passenger Side
