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    MagnaFlow DF Catalytic Conv OEM 2005 GMC Sierra/Chevrolet Silverado 1500/Cadillac Escalade Underbody

    Vendor: MagnaFlow
    Part Number: 4551419
    Regular Price $3,525.00

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4551419. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2003-2005 Chevrolet Silverado 1500, 2003-2005 Chevrolet Tahoe, and additional vehicles. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

    Technical Bulletin
    • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
    • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
    • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
    • Torca AccuSeal® Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force Preventing Pipe Distortion
    • Mandrel Bent Tubing Retains OEM-Like Design And Geometry; Ensuring Smooth Exhaust Flow For Peak Fuel Economy Operation
    • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
    • Expertly Crafted To Replicate OEM Like Flow Dynamics; Maintaining Factory Performance And Fuel Efficiency
    • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
    • Your Trusted Source For CARB-Compliant Catalytic Converters; Providing Assurance Of Genuine Compliance
    • Precision Stamped Collector Design For Optimal Exhaust Flow; Engine Efficiency And Fuel Economy
    • Simplifies installation with essential gaskets and hardware being included in the box
    • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
    • Durable 308 stainless steel MIG welds

    This Part Fits:

    Year Make Model Submodel
    2003,2005 Cadillac Escalade Base
    2003,2005 Chevrolet Avalanche 1500 Base
    2005 Chevrolet Avalanche 1500 LS
    2005 Chevrolet Avalanche 1500 LT
    2003 Chevrolet Avalanche 1500 North Face
    2003 Chevrolet Avalanche 1500 On Road Edition
    2003 Chevrolet Avalanche 1500 WBH
    2005 Chevrolet Avalanche 1500 Z66
    2003,2005 Chevrolet Avalanche 1500 Z71
    2003-2005 Chevrolet Silverado 1500 Base
    2005 Chevrolet Silverado 1500 Hybrid
    2003-2005 Chevrolet Silverado 1500 LS
    2003-2005 Chevrolet Silverado 1500 LT
    2003-2005 Chevrolet Silverado 1500 WT
    2004-2005 Chevrolet Silverado 1500 Z71 Off-Road
    2003,2005 Chevrolet Suburban 1500 LS
    2003,2005 Chevrolet Suburban 1500 LT
    2003,2005 Chevrolet Suburban 1500 Z71
    2003-2005 Chevrolet Tahoe LS
    2003-2005 Chevrolet Tahoe LT
    2003-2005 Chevrolet Tahoe Z71
    2003-2005 GMC Sierra 1500 Base
    2005 GMC Sierra 1500 Hybrid
    2003 GMC Sierra 1500 SL
    2003-2005 GMC Sierra 1500 SLE
    2003-2005 GMC Sierra 1500 SLT
    2003-2005 GMC Sierra 1500 WT
    2003-2005 GMC Yukon SLE
    2003-2005 GMC Yukon SLT
    2003,2005 GMC Yukon XL 1500 SLE
    2003,2005 GMC Yukon XL 1500 SLT
    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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