Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5481578. 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 2009-2013 Chevrolet Silverado 1500, 2009-2013 GMC Sierra 1500, 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 BulletinThis Part Fits:
| Year |
Make |
Model |
Submodel |
| 2009 |
Chevrolet |
Avalanche |
LT |
| 2009 |
Chevrolet |
Avalanche |
LTZ |
| 2009 |
Chevrolet |
Silverado 1500 |
Hybrid |
| 2009,2011 |
Chevrolet |
Silverado 1500 |
LS |
| 2009 |
Chevrolet |
Silverado 1500 |
LT |
| 2009 |
Chevrolet |
Silverado 1500 |
LTZ |
| 2009-2013 |
Chevrolet |
Silverado 1500 |
WT |
| 2009 |
Chevrolet |
Suburban 1500 |
LT |
| 2009 |
Chevrolet |
Suburban 1500 |
LTZ |
| 2009 |
Chevrolet |
Tahoe |
LS |
| 2009 |
GMC |
Sierra 1500 |
Hybrid |
| 2009 |
GMC |
Sierra 1500 |
SL |
| 2009 |
GMC |
Sierra 1500 |
SLE |
| 2009 |
GMC |
Sierra 1500 |
SLT |
| 2009-2013 |
GMC |
Sierra 1500 |
WT |
| 2009 |
GMC |
Yukon |
Hybrid |
| 2009 |
GMC |
Yukon |
SLE |
| 2009 |
GMC |
Yukon XL 1500 |
SLE |
| 2009 |
GMC |
Yukon XL 1500 |
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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Project Incentives:
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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• AH180 — $180 OFF $3000+ | • AH400 — $400 OFF $6000+
• AH630 — $630 OFF $9000+
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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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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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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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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
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