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  1. Driveline
    Please delete.
  2. E46 M3
    I'm trying to get some aftermarket cats as the ones I have are bad. I have some catless headers on the way so all I need to Euro-spec the car is some cats that will pass a sniffer test. Only thing is, I can't seem to find any place that tells me what size cats I need. From what I've read, 200...
  3. E46 M3
    I've looked around and can't seem to find any conclusive info on this particular situation. If you know of a thread that may help please feel free to steer me in that direction. Alright. So, for the last couple months I've been getting SES codes saying my cats are below thresh-hold. First it...
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