I just got a set of 3D MAXpider Kagu series from Amazon for my 2021 Model 3 - is that the one you guys are talking about? I just got them this afternoon, and installed them in my garage, but haven't really had time to mess around much; however, at first the passenger side didn't seem to fit at all. It wasn't down all the way and didn't look good, but I kept pushing them forward a little at a time, and now they seem to fit pretty well, although maybe not 100% perfect. I intend to take the car outside tomorrow, look at it better, and see if I can make any adjustments.
The thing is, it seemed right when I first put it in, but slightly moving it forward by pulling back on the top to make it easier seemed to help a lot. I got it slightly cheaper, and faster, by getting a return (I think) which was still Amazon Prime. They looked brand new to me, even has the plastic film over the logos.
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