Magnaflow
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 451002
SKU: M001 451002
Description
Part #: 451002
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 451002. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 2001-2003 Mazda Protege 2.0L & 2002-2003 Mazda Protege5 2.0L. MagnaFlow 451002 includes (2) Nuts, (2) Bolts, (4) Flat Washers and interchanges with OE parts FS7N-20-600, FS7N-20-600A, FS7P-20-600, FS7P-20-600A, FSAF-20-600, FSAF-20-600A, FSAG-20-600, FSAG-20-600A, FSAH-20-600, FSAH-20-600A. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.
Features:
- Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
- Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
- OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
- High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Simplifies installation with essential gaskets and hardware being included in the box
- Durable 308 stainless steel MIG welds
Magnaflow California Direct-Fit Catalytic Converter
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Magnaflow |
| Part Number | M001 451002 |
Videos
How to Select the Correct Catalytic Converter - California, Colorado and New York | MagnaFlow
How to Select a Replacement Catalytic Converter - CARB or 49 State Legal
Magnaflow Catalytic Converters - 49 State Legal Review - SEMA 2013
Catalytic Converters Tested - $100 EBAY vs $800 CARB Certified
Magnaflow Catalytic Converter Review
Magnaflow Catalytic Converter Features
P0421 Check Engine Light Fix "2001 Mazda protege 2.0 ES" (make not important!)
Mazda Protege Magnaflow High-flow Catalytic Converter Exhaust
My new exhaust on the 02 mazda protege 0-to 150
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy