Do a mid cat delete first thing. Easy and cheap mod and brings some better sounds to the exhaust without triggering the cel.
Pros: easy, cheap mod
Vehicle:
Audi RS3
Reviews of OEM Audi catalytic converter
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6 votes
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2 reviews
Description
OEM Audi
Germany
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Recently did the secondary air system cleaning, PCV, belts, hoses, water pump, thermostat, coils, and plugs. Both cats have broken at the exhaust flange, but I simply welded those back (dealer wanted $2300 for a new one).
Pros: runs and drives beautifully
Cons: cats have broken
Vehicle:
Audi S4
Mileage: 276800 km
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What we know about OEM Audi catalytic converter
The brand is registered in Germany.
In March 2026, PartReview does not yet have a formed opinion of OEM Audi catalytic converter. You can help by adding a review for OEM Audi catalytic converter.
Currently there are 2 reviews and 6 votes. Average rating — 4.5 out of 5. Vote balance: 6 up, 0 down.
Users also evaluated the qualities of OEM Audi catalytic converter:
- Power - car struggles at higher speeds, making passing difficult - rated ambivalently. 3 points out of 5.
- Rattle - metallic rattling from the exhaust, indicating a broken core - rated negatively. 1 point out of 5.
- Smell - strong sulfur/rotten-egg odor, pointing to catalyst trouble - no rating yet
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