Buick LeSabre Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - `00-`03
Buick LeSabre Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - `00-`03

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Buick LeSabre Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - 00-03 is a direct-fit replacement designed for 2000–2003 Buick LeSabre applications. This MagnaFlow unit restores proper emissions control and helps avoid check-engine light triggers associated with a failing converter.
Built to meet California Air Resources Board (CARB) requirements for the listed vehicles, this converter uses a spun-body design and precision metrology during development to match OE fit and function. The single laser fusion weld reduces potential leak points, and the compact, low-mass construction improves thermal efficiency. Corrosion-resistant stainless steel tubing and included gaskets and hardware simplify installation with no cutting or welding required for most applications. This part is also compatible with select other models such as the 2000–2005 Buick Park Avenue — see fitment details before purchase.
Features
- MagnaFlow direct-fit catalytic converter, part number 4561333
- California Grade CARB compliant for the listed vehicles
- Spun-body construction with single laser fusion weld to reduce leak risk
- Corrosion-resistant stainless steel tubing
- Includes gaskets and installation hardware
- No cutting or welding required for typical direct-fit installation
If you have questions or want help confirming fitment, call us directly — 512-982-9393 (TX) or 562-981-6800 (CA). We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area, and we install on premises at both locations. If you’re considering multiple items, contact us for possible shipping discounts.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov








































