GMC Yukon Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - `02-`03
GMC Yukon Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - `02-`03
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GMC Yukon Catalytic Converter - MagnaFlow - California Grade CARB Compliant Direct-Fit (02-03) is a direct-replacement catalytic converter designed for 2002-2003 GMC Yukon and compatible Cadillac Escalade applications. It provides a CARB-compliant solution that installs without cutting or welding when used with the vehicle’s original mounting points.
This MagnaFlow unit (OEM-style spun body, part number 4451421) uses mandrel-bent tubing and corrosion-resistant stainless steel construction to maintain smooth exhaust flow and factory-like performance. MagnaFlow’s R&D employs 3D scanning to replicate OE geometry, and the single laser fusion weld reduces leak risk compared with multiple weld designs. The compact, low-mass converter improves thermal efficiency and includes the gaskets and hardware needed for a proper seal. It is tested to meet California Air Resources Board requirements for the listed vehicles; installation is permitted only if the vehicle’s CARB Executive Order (EO) number and Engine Family Number (EFN) match this converter’s EO.
Features
- CARB-compliant for listed 2002–2003 vehicles (includes EO requirements)
- Mandrel-bent tubing and OE-like flow dynamics
- Spun body with single laser fusion weld to reduce leak potential
- High-corrosion-resistant stainless steel construction
- Includes gaskets and hardware for direct-fit installation (no cutting/welding)
If you have questions or want help confirming fitment for your vehicle, call us directly—our knowledgeable staff can assist. We offer installation and customization services at both of our locations in Austin, Texas and the Los Angeles, California area. Call: 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
and get assistance from one of our sales team members!
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