What should you consider before replacing a catalytic converter due to federally mandated extended warranty coverage on Mazda MX-5 Miata?

Since the federal mandate has provided a long warranty on the parts relating to emissions such as the catalytic converter, one would be advised to seek advice of a dealer service department before changing the converter at your own cost. In order to minimize the emission of hydrocarbon, carbon monoxide, and oxides of nitrogen gases, every vehicle has a three-way catalyst system which oxidizes and reduces the chemicals and transforms them to harmless nitrogen, carbon dioxide and water. In the case of 1997 and earlier years, the catalytic converter is placed below the car between the front and the back exhaust pipes. In 1999 and 2000 models, California models have a Warm-Up Three-Way Catalyst (WU-TWC) besides the primary Three-Way Catalyst (TWC) underneath the vehicle, whereas 49-State models just have the primary Three-Way Catalyst (TWC) underneath. Between the year 2001 and 2005, California and the 49-State models have one TWC catalyst positioned below the vehicle, which is bolted to the front exhaust pipe. The TWC is combined with the exhaust manifold in the TWC of 2006 and subsequent models. Periodic checks ought to be conducted wherein the catalytic converter-to-exhaust pipe mating flanges and bolts are tightened and checked against leaks, whether the catalytic converter protector has dents or other damages, and whether the insulator around the heat insulator is clear of the catalytic converter. The exhaust system includes the elimination of the catalytic converter.

Genuine Mazda MX-5 Miata Catalytic Converter

Cat. Converter

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10 Catalytic Converters found

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Mazda MX-5 Miata Catalytic Converter Part Number: LFYH-20-55XC
$669.50 MSRP: $914.80
You Save: $245.30 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: LFYH-20-55XA, LF45-20-55XB, LF45-20-60XA, LFYH-20-55XB, LF45-20-60XD, LF45-20-55XC, LFYH-20-55X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2006-2009 Mazda MX-5 Miata | Base, Club Spec, Grand Touring, Sport, SV, Touring | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Catalytic Converter Part Number: PE2S-20-55X
$360.75 MSRP: $481.10
You Save: $120.35 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Converter; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2022 Mazda MX-5 Miata | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Catalytic Converter Part Number: PEDA-20-55X
$376.05 MSRP: $505.55
You Save: $129.50 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2022 Mazda MX-5 Miata | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Converter & Pipe Part Number: PERR-20-55X
$485.92 MSRP: $653.24
You Save: $167.32 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Converter; Converter & Pipe
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2023 Mazda MX-5 Miata | Club, Grand Touring, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Converter & Pipe Part Number: PERP-20-55X
$487.95 MSRP: $655.98
You Save: $168.03 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Converter & Pipe
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2023 Mazda MX-5 Miata | Club, Grand Touring, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Exhaust Manifold Part Number: PEDA-20-50X
$533.77 MSRP: $717.58
You Save: $183.81 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Converter; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2019-2023 Mazda MX-5 Miata | 100th Anniversary Special Edition, Club, Grand Touring, RF 100th Anniversary Special Edition, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Exhaust Manifold Part Number: PEJ5-20-50XA
$558.38 MSRP: $750.67
You Save: $192.29 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Converter; Exhaust Manifold
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016-2018 Mazda MX-5 Miata | Club, Grand Touring, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Catalytic Converter Part Number: PEJ6-20-55X
$558.38 MSRP: $750.67
You Save: $192.29 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016-2018 Mazda MX-5 Miata | Club, Grand Touring, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Catalytic Converter Part Number: LFM9-20-55XD
$565.40 MSRP: $760.10
You Save: $194.70 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Replaces: LFM9-20-55XC, LFM9-20-55XA, LFM9-20-55XB, LFM9-20-55X
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2010-2015 Mazda MX-5 Miata | 25th Anniversary Edition, Club, Grand Touring, Special Edition, Sport, Touring | 4 Cyl 2.0 L GAS
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Mazda MX-5 Miata Catalytic Converter Part Number: PEJ5-20-55X
$597.47 MSRP: $803.22
You Save: $205.75 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Converter; Catalytic Converter
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
Fits the following Vehicles:
- 2016-2018 Mazda MX-5 Miata | Club, Grand Touring, RF Club, RF Grand Touring, Sport | 4 Cyl 2.0 L GAS

Mazda MX-5 Miata Catalytic Converter

Looking for Catalytic Converter with proven quality? Choose OEM Catalytic Converter. Mazda designs and builds them to strict factory specs. Every piece goes through rigorous quality checks. You'll get parts that fit right and work like new. Shop our huge inventory of OEM Mazda MX-5 Miata parts. Enjoy the highly competitive prices online. Our site is your one-stop shop. Each genuine MX-5 Miata part includes a manufacturer's warranty. Buy with confidence. Our return policy is simple and hassle-free. In a rush? Choose expedited delivery at checkout. You'll love the streamlined experience from search to checkout to receiving your order.

Mazda MX-5 Miata Catalytic Converter Parts and Q&A

Catalytic Converter
LFM9-20-55XD
Q: What should you consider before replacing a catalytic converter due to federally mandated extended warranty coverage on Mazda MX-5 Miata?
A:
Since the federal mandate has provided a long warranty on the parts relating to emissions such as the catalytic converter, one would be advised to seek advice of a dealer service department before changing the converter at your own cost. In order to minimize the emission of hydrocarbon, carbon monoxide, and oxides of nitrogen gases, every vehicle has a three-way catalyst system which oxidizes and reduces the chemicals and transforms them to harmless nitrogen, carbon dioxide and water. In the case of 1997 and earlier years, the catalytic converter is placed below the car between the front and the back exhaust pipes. In 1999 and 2000 models, California models have a Warm-Up Three-Way Catalyst (WU-TWC) besides the primary Three-Way Catalyst (TWC) underneath the vehicle, whereas 49-State models just have the primary Three-Way Catalyst (TWC) underneath. Between the year 2001 and 2005, California and the 49-State models have one TWC catalyst positioned below the vehicle, which is bolted to the front exhaust pipe. The TWC is combined with the exhaust manifold in the TWC of 2006 and subsequent models. Periodic checks ought to be conducted wherein the catalytic converter-to-exhaust pipe mating flanges and bolts are tightened and checked against leaks, whether the catalytic converter protector has dents or other damages, and whether the insulator around the heat insulator is clear of the catalytic converter. The exhaust system includes the elimination of the catalytic converter.