Nice numbers! You're the second person I've seen on Bimmerpost that has put low 600 on stage 1. I'm curious to know though, what's the longevity expectancy of the cats and turbos on stage 1 with that kind of power? When I removed the cats and switched to catless I remember my cats with a bit of wear (honeycomb dust) when I ran stage one but not sure what power I was putting as I never put it on the dyno.
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