Chevrolet Express 1500 Catalytic Converter Direct Fit - Magnaflow - California Grade CARB Compliant - `03-`05
Chevrolet Express 1500 Catalytic Converter Direct Fit - Magnaflow - California Grade CARB Compliant - `03-`05
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Chevrolet Express 1500 Catalytic Converter Direct Fit - Magnaflow - California Grade CARB Compliant - `03-`05. A direct-fit replacement catalytic converter (MagnaFlow part 4551211) designed to restore proper emissions function and maintain factory fitment for 2003–2005 Chevrolet Express 1500 and compatible GMC Savana 1500 applications.
This MagnaFlow California Grade converter replicates OE spun-body design and uses precision metrology during development to ensure correct fit and function. Constructed with corrosion-resistant stainless steel and mandrel-bent tubing, it maintains exhaust flow characteristics for reliable engine operation and fuel economy. The compact, low-mass design and single laser fusion weld reduce leak potential while included gaskets and hardware simplify installation — no cutting or welding required for most applications. It is designed to meet or exceed California Air Resources Board requirements and has undergone additional testing to allow legal use in CARB-restricted states for the listed vehicles; installation is permitted only if the vehicle’s Executive Order (EO) number and Engine Family Number (EFN) appear in this converter’s CARB Executive Order.
Features
- CARB-compliant California Grade direct-fit unit (MagnaFlow 4551211)
- Mandrel-bent tubing and spun-body design for OEM-like exhaust flow
- High-corrosion stainless steel construction with single laser fusion weld
- Includes gaskets and hardware to reduce risk of exhaust leaks
- OE-sized hangers and Torca AccuSeal® style clamping for reliable sealing
- Direct-fit for 2003–2005 Chevrolet Express 1500 and compatible GMC Savana 1500
If you have questions or need fitment guidance, call us directly — our tech team can help confirm compatibility and installation needs. We offer installation and customization services at two locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to speak with a specialist or to schedule service.
If you are considering multiple items, contact us for possible 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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