I have a 13 with AT and z1 bushings and I’ve felt the 2 to 1 shift and also a 1 to 2 shift can be harsh at times (even triggers the ecutek knock indicator). It did these even before the bushing swap though and really the thing that helps the most is changing the fluid then it smooths out for a while. I’m not too sure there is any issue with yours and may just be normal as I’ve had others say the 1-2 shift can be a bit harsh.
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