GMC Sierra 2500 HD Catalytic Converter - Magnaflow - Direct Fit - `01-`02
GMC Sierra 2500 HD Catalytic Converter - Magnaflow - Direct Fit - `01-`02

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GMC Sierra 2500 HD Catalytic Converter - MagnaFlow - Direct Fit - `01-`02. This OEM-grade MagnaFlow direct-fit converter is built to replace the factory unit on 2001–2002 GMC Sierra 2500 HD models, matching fit and function for a straightforward replacement.
Engineered with a spun-body design and precision 3D-scanned fitment, this converter replicates OE geometry to reduce the risk of leaks and preserve exhaust flow. Constructed from corrosion-resistant stainless steel with mandrel-bent tubing, it offers durable service life and retains factory-like performance and fuel economy. Installation is simplified with included gaskets, hardware and OE-style hangers so no cutting or welding is required when installed correctly. It interchanges with OE part numbers 15077755 and 15729035.
Features
- OEM-grade direct-fit design for 2001–2002 Sierra 2500 HD
- Spun-body construction with single laser fusion weld to minimize leak points
- Mandrel-bent stainless steel tubing for smooth exhaust flow
- Includes gaskets & hardware; OE-sized barbed hangers
- Designed to meet Federal EPA emissions requirements
If you have questions about fitment or installation, call us — our specialists can help you confirm compatibility and answer technical questions. We have installation and customization services available at both locations: Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA) to schedule service or get advice.
If you are considering purchasing 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













































