Pontiac Grand Am Catalytic Converter - Rear - Magnaflow - HM Grade Direct-Fit (OBDII), Stainless Steel - `04-`05
Pontiac Grand Am Catalytic Converter - Rear - Magnaflow - HM Grade Direct-Fit (OBDII), Stainless Steel - `04-`05

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Pontiac Grand Am Catalytic Converter - Rear - Magnaflow - HM Grade Direct-Fit (OBDII), Stainless Steel - `04-`05 is a direct-fit replacement designed to restore emissions control and fit the original exhaust geometry. It is engineered for drivers who want a reliable, OE-style catalytic converter for their 2004–2005 Grand Am.
This MagnaFlow HM Grade converter replicates OE spun-body design and uses mandrel-bent tubing and corrosion-resistant stainless steel for long service life. The compact, low-mass design improves thermal efficiency while a single laser fusion weld reduces leak potential. It is built to meet Federal/EPA emissions requirements for OBDII-equipped vehicles, and includes gaskets and hardware to help ensure a proper seal during installation. Because it is a direct-fit unit, installation is simplified and typically requires no cutting or welding when proper tools and procedures are used. Note: HM Grade parts are Federal/EPA compliant but are not CARB-certified; verify local regulations before purchase or installation.
Features
- Direct-fit for 2004–2005 Pontiac Grand Am rear exhaust
- HM Grade Federal/EPA compliant for OBDII systems
- Stainless steel construction with mandrel-bent tubing
- OE-style spun body and laser fusion weld to reduce leaks
- Includes gaskets and hardware for proper sealing
If you have questions or want help confirming fitment, call us directly — we’re happy to assist. We have two service locations offering installation and customization: Austin, Texas and the Los Angeles, California area. Please confirm local emissions rules before installation in California. Call 512-982-9393 (TX) or 562-981-6800 (CA) for parts, installation scheduling, or technical questions. If you plan to purchase 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












































