MagnaFlow Direct-Fit Catalytic Converter for 1999-2000 Mazda Miata 1.8L
MagnaFlow Part #51992

Take your Miata’s performance to the next level while keeping the check engine light off with the MagnaFlow Direct-Fit Catalytic Converter. Designed specifically for the 1999-2000 Mazda Miata 1.8L, this OEM-grade converter ensures your exhaust system functions seamlessly, all while meeting the stringent EPA emissions standards. Whether you're on the street or the track, this high-performance part provides a boost to your vehicle's exhaust flow without compromising on quality or efficiency.

Key Features and Benefits:

  • Superior Performance & Efficiency: Free-flowing mandrel-bent tubing reduces exhaust restrictions, allowing your engine to perform at its best with increased horsepower and torque.
  • Durability & Corrosion Resistance: Constructed from high-quality stainless steel, this catalytic converter is built to withstand the harshest conditions, offering long-lasting reliability and corrosion resistance.
  • Easy Installation: Designed for a direct fit with no cutting or welding required, the MagnaFlow 51992 converter comes with the necessary gaskets for a perfect seal, ensuring no exhaust leaks or reusing corroded factory parts.
  • Enhanced Thermal Efficiency: The compact, low-mass design improves thermal efficiency while maintaining consistent performance across varying temperatures.
  • CARB and EPA Compliant: Meets Federal and California emission requirements, making it compliant for use in all 50 states. Perfect for OBDII Federally registered vehicles and California emissions vehicles.
  • OE Replacement Compatibility: Interchanges with OE parts BP4Y-20-500C and BP4Y-20-500B for a hassle-free replacement with guaranteed fitment.

MagnaFlow is a trusted name in performance and durability, and this catalytic converter provides the same high standards you expect from the brand. Keep your Mazda Miata running smoothly and legally with this easy-to-install, high-performance catalytic converter. Order now to experience optimal exhaust performance and reliability!

Order the MagnaFlow Direct-Fit Catalytic Converter today and enhance your Miata’s performance with a trusted, quality part!



This Part Fits:

Year Make Model Submodel
1999 Mazda Miata 10th Anniversary
1999-2005 Mazda Miata Base
2000-2005 Mazda Miata LS
2000-2003 Mazda Miata SE
2003 Mazda Miata Shinsen

Shipping Policies

Free Shipping on all orders over $56.

For orders under $56, we offer ground shipping for only $9.99.

Need your parts faster? Flat-rate expedited shipping options are available.

Standard delivery in 3-5 business days or less.

For in-stock items, our free ground shipping reaches any of the 48 contiguous U.S. states in 5 business days or less.

International Shipments

Garage 56 Engineering provides the best service and quality parts to customers all over the globe every day. We understand that purchasing parts internationally can be stressful and would like you to know we are committed to helping at every step of the way.

Transit times listed on the website are estimates and will vary depending on your location as well as the amount of time it will take your government to process the order through customs. In most cases, orders take around a week to arrive but can be closer to two to three weeks to some countries.

You may be charged a duty (tax) on your order. We do not handle this tax and your local customs agency will charge you the correct amount per your local laws. It is your responsibility to review and understand these taxes when ordering.

Please note that our fitment data and vehicle selector is for United States of America Market cars only. If you are searching for parts for an international car please search for exact part numbers.


Return Policies

We have a 365-day return policy, which means you have 1 year after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@garage-56.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@garage-56.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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