Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 280745. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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. MagnaFlow 280745 includes (1) Donut Gasket, (1) Crush Ring, (2) Clamps. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2020-2023 |
Chevrolet |
Silverado 2500 HD |
Custom |
| 2020-2023 |
Chevrolet |
Silverado 2500 HD |
High Country |
| 2020-2023 |
Chevrolet |
Silverado 2500 HD |
LT |
| 2020-2023 |
Chevrolet |
Silverado 2500 HD |
LTZ |
| 2020-2023 |
Chevrolet |
Silverado 2500 HD |
WT |
| 2020-2023 |
Chevrolet |
Silverado 3500 HD |
High Country |
| 2020-2023 |
Chevrolet |
Silverado 3500 HD |
LT |
| 2020-2023 |
Chevrolet |
Silverado 3500 HD |
LTZ |
| 2020-2023 |
Chevrolet |
Silverado 3500 HD |
WT |
| 2020-2023 |
GMC |
Sierra 2500 HD |
AT4 |
| 2020-2021 |
GMC |
Sierra 2500 HD |
Base |
| 2020-2023 |
GMC |
Sierra 2500 HD |
Denali |
| 2022-2023 |
GMC |
Sierra 2500 HD |
Pro |
| 2020-2023 |
GMC |
Sierra 2500 HD |
SLE |
| 2020-2023 |
GMC |
Sierra 2500 HD |
SLT |
| 2020-2023 |
GMC |
Sierra 3500 HD |
AT4 |
| 2020-2021 |
GMC |
Sierra 3500 HD |
Base |
| 2020-2023 |
GMC |
Sierra 3500 HD |
Denali |
| 2022-2023 |
GMC |
Sierra 3500 HD |
Pro |
| 2020-2023 |
GMC |
Sierra 3500 HD |
SLE |
| 2020-2023 |
GMC |
Sierra 3500 HD |
SLT |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Authorized Retailer:
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AutoHouse Supply is an Authorized Retailer for our premier brand partners. We utilize an extensive wholesale network to ensure all 600k+ SKUs in our catalog are 100% genuine, factory fresh, and sourced through legitimate industry channels.
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Every product we sell carries its full original manufacturer’s warranty. While warranties are serviced by the brands themselves, we act as your advocate handling technical details to ensure your claim is processed fairly.
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Global Reach:
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Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
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Contact Page.
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Direct Consultation:
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To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to:
support@autohousesupply.com
Our experts will review your specifications and provide written confirmation for your build.
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For tracking updates or status inquiries on existing orders, please reach out via our Contact Form. Having your order number ready will allow us to provide the most efficient update.
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We proudly support builds across the US, Canada, Mexico, and worldwide. For international shipping quotes or oversized freight logistics, please contact us via the email link above.
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At AutoHouse Supply, we are enthusiasts first. Our goal is to provide a seamless logistical experience so you can focus on your build. Please see our standard guidelines below.
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Secure Shipping:
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We offer FREE Ground Shipping within the 48 contiguous United States. Most in stock orders process within 48 hours. For your security, high value performance parts require a signature upon delivery to ensure they reach you safely.
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Transit Protection:
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Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
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Flexible Returns:
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Unused items in brand new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand new, untampered components, parts that have been installed, modified, or used are non returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
Contact Form before shipping any items back so we can provide you with an RMA number.
Fitment Guarantee
Fitment guides and tools are helpful, but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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Questions? Send us your
Year, Make, and Model via our
Contact Form and we’ll get you a definitive answer so you can buy with confidence.
