I read that before as well, but did a little research and found that it must have been a mistake in the article. The only overboost function BMW has indicated one of their cars has was in the "is" models (335is, Z4 sDrive35is, etc). And these are obviously the inline-6 models. Nothing I could turn up indicated any sort of factory overboost feature on the N20 engines. Would have been nice though!
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- Scott
Current Cars: 2019 X5 xDrive40i M-Sport, 2018 Camaro ZL1
Past BMWs: '16 528i, '00 M-Coupe, '14 X1 sDrive28i, '00 740iL, '02 325i, '99 M-Coupe, '00 323Ci, '79 323i, '83 320i