Catalytic Converter for 1999-2005 Mazda Miata 1.8L OEM Grade Federal / EPA Compliant Semi-Direct Fit Catalytic Converter
SKU: 4304717853

Catalytic Converter for 1999-2005 Mazda Miata 1.8L OEM Grade Federal / EPA Compliant Semi-Direct Fit Catalytic Converter

Sale price$242.10 Regular price$269.00
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Catalytic Converter for 1999-2005 Mazda Miata 1.8L OEM Grade Federal / EPA Compliant Semi-Direct Fit Catalytic ConverterOverview: MagnaFlow OEM Grade Federal EPA Compliant Direct Fit Catalytic Converter 51597 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state of the art 3D scanning systems in the

Overview:

MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51597 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. This direct-fit catalytic converter is designed specifically for the 1999-2005 Mazda Miata and interchanges with OE parts BP4Y-20-55XH, BP4Z-20-55XH, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation.

Note : Not For Sale in California

Interchange:

Brand  Interchange Part Number
Mazda BP4Y-20-55XH
Mazda BP4Z-20-55XH
Mazda BP6F-20-55XC
Mazda BP7F-20-55X
Mazda BP4Y2055XH
Mazda BP4Z2055XH
Mazda BP6F2055XC
Mazda BP7F2055X
Mazda BP4Y-20-55XH
Mazda BP4Z-20-55XH
Mazda BP6F-20-55XC
Mazda BP7F-20-55X
Mazda BP4Y2055XH
Mazda BP4Z2055XH
Mazda BP6F2055XC
Mazda BP7F2055X

Application:

Year Make Model Submodel Engine Size
1999 - 2005 Mazda Miata 1.8L/L4

Specs:

Body Material Stainless Steel
Overall Length (In.) 27
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 1
Inlet Attachment Bolt-On
Series OEM Grade
Material Stainless Steel
Outlet Attachment Clamp-On
Oxygen Sensor Location None
Subtitle Federal / EPA Compliant
Title OEM Grade Direct-Fit
Finish Stainless Steel
Type Direct-Fit
Main Piping Diameter (In.) 2.25
Heat Shield Included Yes
Mounting Hardware Included Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4304717853

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4.7 ★★★★★
Based on 922 reviews
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Cassie Huerta
Lake Worth, US
★★★★★ 5
Great socks for the price!
Size: 6-10, Color: Black, Size: 6-10, Color: Black
I love these socks, they are perfect no shows but the material is thick enough for toes not too go thru. The grip is perfect and keeps the sock in place all day. I would definitely order true to size as the fit was perfect. I was surprised to find these socks at the price I did, especially when I got the socks in both black and white.
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Reviewed in the United States on December 9, 2025
K
Verified Purchase
Kayla
New York, US
★★★★★ 5
Best non-slip no show sock!
Size: 6-10, Color: Black
I love these socks! I wear them mostly with my slip on vans. The are thin so your feet can breathe (I hate thick socks). They have a grip on the heal so that they don't slip off of your feet, and it actually works! My only negative about these socks would be that if you have bigger than a size 8 foot, I would not purchase them because they do run a bit small. I wear a size 7 and they fit perfectly! They do look very tiny upon unpacking, but they stretch to the according size. I would also recommend letting them air dry after washing them and not putting them in the dryer. The first pair I purchased, I made the mistake of drying them and they shrank to an unbelievably small size. I've had my second set of socks for over 4 months now and have not had any problems since Ive been air drying them. I have not encountered any problems with them tearing as other have stated. Even though these are thin socks, they seem to be made quite well in my opinion.
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Reviewed in the United States on December 5, 2022
L
Verified Purchase
Leah P.
Louisville, US
★★★★★ 5
I buy these again and again through the years!
Size: Medium, Color: Austin Brown Assorted (6-pairs)
Love these. After a year or two I wear holes in the bottoms because I wear them so much. Worth the little bit higher price because of the fit and comfort. Love how they are truly no show
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Reviewed in the United States on October 18, 2025
R
Verified Purchase
R3⭐️
Boise, US
★★★★★ 4
Good quality but tight on toes
Size: 6-10, Color: White/Assorted
These are great socks that stay in place, but they scrunch my toes together like crazy. My feet are normal width. When I first started wearing them I noticed my feet would ache after an hour or two.
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Reviewed in the United States on April 26, 2026
B
Verified Purchase
Brock1234
Boise, US
★★★★★ 5
My New Favorite Socks
Size: 6-10, Color: Halo Gray/Assorted
These have quickly become mine and my mom's favorite socks. We wear them with tennis shoes, Hey Dudes, and more. The fabric is incredibly soft and comfortable, they do not budge/fall in my shoe, and are extremely well made. I have become so attached to these socks, that I no longer want any other brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 4, 2025

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