674-318 674-319 | Manifold Catalytic Converter for BMW 128i 2008-2013 3.0L, 323i 2006-2011, 328i 2007-2013 3.0L, 328xi 2007-2008 3.0L, X3 2011-2012 3.0L, X5 2007-2010 3.0L |

Additional Details from the Manufacturer

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• Compatible with: BMW 128i 2008-2013 3.0L, 323i 2006-2011, 328i 2007-2013 3.0L, 328xi 2007-2008 3.0L, X3 20011-2012 3.0L, X5 2007-2010 3.0L
• Replaces part numbers: 674-318 674-319
• High-flow catalytic converters boost conversion efficiency and vehicle power while maintaining flow rates. Constructed from durable 409L stainless steel, they feature welded connections that endure high temperatures and pressure, enhancing service life.
• These free-flow catalytic converters feature bolt-on connections and a flange-to-flange design for easy installation. They also come with all necessary accessories, including gaskets and hardware, for a smooth replacement.
• [About Warranty] 1 Year (12 Months) Unlimited-mileage Quality Guarantee.