Transfer case. I made a thread about this same issue, once I turned xDelete on (RWD mode) I no longer felt the stuttering/rough acceleration
https://www.2addicts.com/forums/show....php?t=1686839
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Current: 2018 Audi S3 IE Stage 1
Past: '08 Infiniti G37S, '87 Porsche 944 Turbo, '13 328i, '15 M235i, '15 F80 M3, '16 M235i, '15 335i, '17 X5 xDrive35i
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