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My 2007 C280 needs a new catalytic converter .
Are after market ones any good ?
Do they play nice with the car's electrics ?
Im in Canada so California smog restrictions dont apply .
MercedesMedic 9 months 3 weeks ago
I have used them in the past more than once, and never had any problem.
Which means I would use them again. It's not worth paying over $500 for OEM cats.
Never had any issues with the O2 sensors or CEL coming on.