Quote:
Originally Posted by jwl_m340_G20
Quote:
Originally Posted by freshxdough
02 spacer or even a mini cat will not work. I have tried this on my B58D in my 2020 X3 M40i with no luck. Always comes back in a few drive cycles. If not a catalyst efficiency fault I would get a catalyst heater fault. These new engines are very smart now.
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Yup that's what I thought - looks like I'm buying the Active Autowerks one when back in stock |
Yeah. If you don't go with a tune to clear the CEL, the. I believe you will need like a 300cel to make sure you don't get a catalyst fault. I have 200 cel and it triggers 2nd drive cycle every time after clearing. I think AA is also 300cel or higher but still less than stock. Will give a good sound increase as well.