Tons in the field on a variety of platforms with very few issues across the board. We had a N54 turbine debacle back in 2017ish timeframe that bit us pretty good, but we sucked it up, learned from it and never looked back. N54 wise our turbos hold or have held records in pretty much every performance category, S55 we've now got 5 stock motor cars running GC's in the 9's, B58 is just getting rolling compared to the other BMW platforms but feedback thus far has been fantastic. I know you're looking for more third party feedback, but we're always happy to help with more info, or to make a decision on which turbo(s) are best for you. Feel free to shoot an email or PM.
Chris
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