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Discussion Starter · #1 ·
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 cell cats pass fine but I need to make sure they're big enough. So, does anyone have an idea as to how long and wide they have to be?
 
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