New E92 M3: how many cats and where are they placed?
Discussion
I'm going to study the posibility to swap my new M3 cats with performant ones and maybe wipe them out altogether, even if I dont have a clue on how to 'accomodate' the ecu signals in this case...anyway i'd love to know how many cats has the car and where are they located, also, has it any cat in the headers or just after them? Thanks
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