MagnaFlow 51578 2.5" Inlet/outlet Direct Fit Catalytic Converter

MagnaFlow 51578 2.5
1013.00In stock
  • Brand: MagnaFlow
  • |
  • SKU: FBHB51578
  • |
  • Part Number: 51578

2010-2013 Cadillac Escalade V8 6.0L/2009-2013 Chevrolet Avalanche V8 5.3L/2009 Chevrolet Avalanche V8 6.0L/2009 Chevrolet Silverado 1500 V8 6.0L GAS/2009-2013 Chevrolet Silverado 1500 V6 4.3L/2009-2013 Chevrolet Silverado 1500 V8 4.8L/2009-2013 Chevrolet Silverado 1500 V8 5.3L/2009-2014 Chevrolet Suburban 1500 V8 5.3L/2009 Chevrolet Suburban 1500 V8 6.0L/2009-2014 Chevrolet Tahoe V8 5.3L/2009 Chevrolet Tahoe V8 4.8L/2010-2013 Chevrolet Silverado 1500 V8 6.0L/2010-2013 Chevrolet Tahoe V8 6.0L/2009 GMC Sierra 1500 V8 6.0L GAS/2009-2013 GMC Sierra 1500 V6 4.3L/2009-2013 GMC Sierra 1500 V8 4.8L/2009-2013 GMC Sierra 1500 V8 5.3L/2009-2014 GMC Yukon XL 1500 V8 5.3L/2009 GMC Yukon XL 1500 V8 6.0L/2009-2014 GMC Yukon V8 5.3L/2009 GMC Yukon V8 4.8L/2010-2013 GMC Sierra 1500 V8 6.0L/2010-2013 GMC Yukon V8 6.0L

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Product Details

MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, rather than meets, the highest standards of product performance and efficiency in the industry.

MagnaFlow uses both Ceramic and Metallic substrates with different combinations of cell density and wall thickness to meet vehicle specific requirements. MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications.

While the majority of the Direct-Fit Catalytic Converter products do not require welding, cutting or bending, limited applications may require additional welding for optimal installation. All Federal catalytic converters meet EPA requirements. Federal Catalytic Converters are not legal for sale, installation or use on vehicles registered in the state of California.

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2010-2013CadillacEscalade V8 6.0L
2009-2013ChevroletAvalanche V8 5.3L
2009ChevroletAvalanche V8 6.0L
2009ChevroletSilverado 1500 V8 6.0L GAS
2009-2013ChevroletSilverado 1500 V6 4.3L
2009-2013ChevroletSilverado 1500 V8 4.8L
2009-2013ChevroletSilverado 1500 V8 5.3L
2009-2014ChevroletSuburban 1500 V8 5.3L
2009ChevroletSuburban 1500 V8 6.0L
2009-2014ChevroletTahoe V8 5.3L
2009ChevroletTahoe V8 4.8L
2010-2013ChevroletSilverado 1500 V8 6.0L
2010-2013ChevroletTahoe V8 6.0L
2009GMCSierra 1500 V8 6.0L GAS
2009-2013GMCSierra 1500 V6 4.3L
2009-2013GMCSierra 1500 V8 4.8L
2009-2013GMCSierra 1500 V8 5.3L
2009-2014GMCYukon XL 1500 V8 5.3L
2009GMCYukon XL 1500 V8 6.0L
2009-2014GMCYukon V8 5.3L
2009GMCYukon V8 4.8L
2010-2013GMCSierra 1500 V8 6.0L
2010-2013GMCYukon V8 6.0L


  • Engineered to keep the Check Engine light off
  • CNC precision robotic manufacturing
  • Meets or exceeds EPA emissions requirements


  • Gasket Included

Important Notes

  • Bolt-on installation. May require basic automotive knowledge for proper installation and professional installation is always recommended.
  • ATTN State of California Consumers warning: Cancer and Reproductive Harm