Pontiac GTO Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - 2004
Pontiac GTO Catalytic Converter - Magnaflow - California Grade CARB Compliant Direct-Fit - 2004

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Pontiac GTO Catalytic Converter - MagnaFlow - California Grade CARB Compliant Direct-Fit - 2004 (MagnaFlow part 4561031) is a direct-fit replacement designed specifically for the 2004 Pontiac GTO. It restores proper emissions control and matches OEM fit and flow so your engine management system stays happy.
This California-grade, CARB-compliant converter features a spun-body design with mandrel-bent tubing and corrosion-resistant stainless steel construction for durable service in road conditions. The unit is engineered to replicate OE flow dynamics, using precise 3D-based development for accurate fitment. A single laser fusion weld on the spun body reduces leak potential while the compact, low-mass layout supports thermal efficiency. Installation is simplified with included gaskets & hardware and the direct-fit design removes the need for cutting or welding when installed with the right tools.
Features
- Direct-fit for 2004 Pontiac GTO (MagnaFlow 4561031)
- California Grade, CARB-compliant design for CARB-regulated states
- Mandrel-bent tubing and spun-body construction for OEM-like flow
- Highly corrosion-resistant stainless steel and precision weld
- Includes gaskets & hardware; clamps available to maintain seal
If you have questions or want advice on fitment or installation, call us directly at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services. If you are thinking about purchasing 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










































