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I heard BM3 maps were more aggressive than MHD and mostly saw online (IG, FB, etc.) that the B58 owners that had issues with their cars were running BM3. Correlation doesn't imply causation but it was enough for me to go MHD.
Been on Stage 2 91 oct and occasionally 95 oct but with 100 octane in the tank for about 20k miles now on top of Stage 3 xHP with no issues or error codes. Only have a catless downpipe and various little things like a turbo blanket.
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