Quote:
Originally Posted by vafan13
Has anyone actually used the 8165 (ZR5TPP330) referenced in that thread?
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Besides the OP of that thread, not sure. I have a set going in this weekend which is why I posted the link. If you look at the applications, the 8165 is used in a ton of other BMW engines. My guess is after some long term testing they realized the larger electrode wasn't needed on the M engines after all. Pair that with increased coil failures and it seems they've decided to phase out that plug.