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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Make it Do!
Birmingham, US
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
S
Verified Purchase
SeanCeltiad
Battle Creek, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
L
Verified Purchase
Larry
Louisville, US
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
R
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Robert III
Charlottesville, US
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026
T
Verified Purchase
Tajuana Perkins
Waukegan, US
★★★★★ 5
Nice turtle neck sweater
Color: Royal Blue, Size: Small
It was true to size a perfect fit and the color is beautiful. Nice sweater for the amount paid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026

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