SKU: 17374083814

Catalytic Converter for 1999-2000 Mazda Miata 1.8L California Grade CARB Compliant Direct-Fit Catalytic Converter MagnaF

Sale price$310.95 Regular price$345.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 11 - Sep 16

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Description

Catalytic Converter for 1999-2000 Mazda Miata 1.8L California Grade CARB Compliant Direct-Fit Catalytic Converter MagnaFOverview: MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 441771 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

Overview:

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 441771 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 1999-2000 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. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to be certified by CARB for legal use in CA/CARB restricted states for the listed vehicles.

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 - 2000 Mazda Miata 1.8L/L4

Specs:

Body Material Stainless Steel
Overall Length (In.) 26.75
Substrate Material Ceramic
Air Tube Adaptable No
Converter Quantity 1
Inlet Attachment Bolt-On
Main Piping Diameter 2.25
Oxygen Sensor Location None
Finish Stainless Steel
Material Stainless Steel
Series California
Subtitle California / CARB Compliant
Title California Direct-Fit
Type Direct-Fit
Outlet Attachment Clamp-On
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: 17374083814

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4.8 ★★★★★
Based on 22 reviews
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Product Reviews
D
Verified Purchase
DB
Whiting, US
★★★★★ 5
Much Needed Cabin Air Filter Replacement!
This Cabin air filter replacement is working well. It had been a long time since I replaced my cabin filter, so this was a much needed replacement. It was easy to do, and a much needed replacement. The air quality inside my car is much better. It smells fresh, and light and airy now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
S
Verified Purchase
Sam Meng
Lowell, US
★★★★★ 5
Great quality and noticed an immediate difference!
Style: BE-966H 1-Pack
Even though it’s not the OEM (original) filter, the quality is outstanding! It was easy to install and fits perfectly. I noticed a significant improvement in the air quality inside my car right away. Definitely a great buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
S
Verified Purchase
Seaner
Omaha, US
★★★★★ 5
Easiest DIY ever
Style: BE-157H 1-Pack
So a Toyota dealer will want $40+ to replace this filter, but for $10 and 2mins you can easily do this yourself. There’s a great 1:30 how-to vid on the YouTube, drop the glove box (one push) open the little door, remove old filter (note the arrow) and put in the new one, close door, close glove box, enjoy better flow and fresh air. This filter is a HEPA so it’s a performance upgrade over the OEM, fit is perfect, seems sturdier than the OEM, great value if you’ve got 2mins. Highly recommend. Thanks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
K
Verified Purchase
Karen Michael-Pook
Port Orchard, US
★★★★★ 5
Awesome Cabin Air Filter
Style: BE-151H 1-Pack
This product is not only cost efficient, it was also easy to install. The instructions in the package were helpful. I would definitely recommend using this filter for your 2017 Hyundai Sonata.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
M
Verified Purchase
milt loper
Dallas, US
★★★★★ 4
the "fit" is very precise
Style: BE-176H 1-Pack
Nice Fabrication, Good materials, perfect adhesive applications, "clean joints" etc. Appears to be a good UPGRADE from the stock Motorcraft product. CONs: The FIT was a "smidge TIGHT", and took very precise initial alignment and "pressure" to begin to slide into the rectangular hole. I measured the "Hole" at 7.375" wide, or (187.33 mm)... the FILTER is exactly the SAME. I would suggest maybe reducing the Width by 1 mm, to allow for an easier installation. The MOTORCRAFT uses an "open-cell" foam structure for the (2) Side pieces on their filter assembly, allowing some "compression to fit", of the Width, easing the difficulty of installation, yet still filling all voids. In summation, the "fit" is very precise. Not to be hurried or rushed, maybe a bit meticulous for the impatient or weak of heart.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2025

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