BMW M3 Catalytic Converter - Underbody - Magnaflow - Direct Fit Converter - `15-`18
BMW M3 Catalytic Converter - Underbody - Magnaflow - Direct Fit Converter - `15-`18
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BMW M3 Catalytic Converter - Underbody - Magnaflow - Direct Fit Converter - `15-`18. A direct-fit, OEM-grade underbody catalytic converter designed for 2015–2018 BMW M3 models, built by MagnaFlow to replace the original unit without cutting or welding.
This MagnaFlow direct-fit converter replicates OE spun-body design and uses advanced 3D metrology during development so the part fits and functions like the factory unit. The compact, low-mass construction improves thermal efficiency while a single laser fusion weld reduces potential leak points. Mandrel-bent tubing and corrosion-resistant stainless steel construction maintain smooth exhaust flow and long service life. Hardware and clamps are included to simplify installation and to help avoid issues with corroded factory parts. Designed to meet Federal EPA emissions requirements for OBDII Federally registered vehicles with Federal/EPA emission systems. Not legal for sale or installation in California, Colorado, or New York.
Features
- Direct-fit for 2015–2018 BMW M3 (underbody)
- OE-style spun body with single laser fusion weld
- Mandrel-bent tubing for smooth exhaust flow
- High-corrosion-resistant stainless construction (409 tubing, 410 hangers)
- Includes hardware and Torca AccuSeal® clamps for reliable sealing
- Interchanges with OE parts 18 30 8 094 373 and 18 30 7 851 178
If you have questions or want help confirming fitment, call us direct — we’re happy to 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 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
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Call us at 512-982-9393 (Austin, TX) or
562-981-6800 (Signal Hill, CA)
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