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Catalytic Converters
Mazda Catalytic Converters
Sort by:Recommended
16-18 Mx5 Exhaust Manifold to Down Pipe Gasket (PE23-40-305)
Between the exhaust manifold and the rest of the exhaust pipe/catalytic converter.
90-95 20B Cosmo Exhaust Manifold to Catalytic Converter Gasket (NF01-40-305A)
Fits all 90-95 20B Cosmo engines.
93-95 Rx7 Catalytic Converter Exhaust Gasket (RF36-40-305)
One 93-95 Catalytic Converter Exhaust Gasket,
Two needed per car.
Need one from down pipe to catalytic converter and another one for the catalytic converter to the muffler/silencer.
04-11 Rx8 Catalytic Converter Gasket (L3A1-40-581)
Fits all 04-11 Mazda Rx8s.
Catalytic Converter to Pipe Gasket
Same as L315-40-581
04-11 Rx8 Exhaust Manifold to Catalytic Converter Gasket (N3H1-40-305)
Rx8 Catalytic Converter Gasket
ID of gasket is 2-3/4"
86-91 Rx7 Exhaust Manifold to Catalytic Converter Gasket (N378-40-305)
86-91 Turbo & Non Turbo Catalytic Converter Gasket
This fits the front & rear of the catalytic converter, 2 required per car.
Also fits the 90-95 20B Cosmo.
N326-40-305
81-95 Rx7 Pipe to Cat Split Air Gasket (YJZ4-40-375)
Fits 12A, 13B N/A & Turbo
This gasket has metal inside it to withstand exhaust gas heat, not a typical paper gasket.
Supersedes from 1480-40-375
04-11 Rx8 Racing Beat Catalytic Converter Race Pipe (16201)
Racing Beat offers a full 304-stainless steel catalytic converter replacement pipe for RX-8 racing applications. The weight of this pipe is 10 lbs.
This mandrel-bent 3" OD racing pipe is a direct bolt-on replacement for the stock catalytic converter section.
This pipe utilizes a genuine OEM rear mounting flange for a secure fit to the stock (or an aftermarket) exhaust system. The race pipe is equipped with a sensor fitting for the oxygen sensor. (Note: Placement of the sensor in the pipe will cause the "check engine" light to be illuminated, but performance and engine systems will not be affected.) Removal of the OE catalytic converter/presilencer section will result in a noticeably louder exhaust tone.
81-85 Rx7 Mono Converter & Rear Main Converter Gasket (1480-13-621A)
Fits:
- 81-85 Rx7 - Mono Converters
- 84-85 Rx7 - Rear Main Converter
99-05 Miata Catalytic Converter Gasket (Z520-40-305A)
Fits all 99-05 Mazda Miatas.
Between the converter and main silencer.