Looking to buy something to replace my bad cats with on my 2002 s4

[derek2079]

Two of cats are bad on my 2002 s4. I need to find something to replace them with so long as it passes safety and emissions. It's an auto in case it matters.

I need to find out what cats are bad before I buy replacement ones because there are 4 cats altogether.

[JDish92]

Both of cats are bad on my 2002 s4. I need to find something to replace them with so long as it passes safety and emissions. It's an auto in case it matters.

Pmd


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[derek2079]

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