I have factory cats I would consider sellknf, but my car is a 2010 bmw x6m, 4.4 V8 , so it probably won't work for you
Can you get a. USB to OBD2 cable, install ISTA on a laptop and interface with your truck? This should give you a better understanding as to what modules may be having issues
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'10 X6M
'08 Cooper S
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