Quote:
Originally Posted by M8Bimmer
I have the Race Chip black. I like it very much. Really it works without noticing it's there. Quite seamless and adds a load of power. I actually feel it's increased my mileage but I haven't documented that. Just a feeling.
Many settings on it too.
Anyway I'm glad I got mine. Plus it pops off for dealer visits. They've never said about one thing in 3 years too me so it seems non-detectable as Race Chip claims.
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They typically won't say anything until something major happens because there's no reason to lose a customer over nothing.
They can track everything by looking at boost numbers. This was confirmed on a few threads by BMW mechanics. There's a lengthy thread on this on Reddit and confirmed by the Service Advisors.
Anything that's outside of the typical threshold can be claimed as having a tune/piggyback.