I heard this shuttering on my car and I did not like it one bit, I would lift on the 1-2 shift and do my wot pulls starting in 2nd.. I tried last night and it doesn't do it anymore. Most of my tranny stuff is stock.
I have snow tires and it's 20 degrees F. So I knew it wasn't wheel hop but I thought maybe it was wheel hop because others said it was and the fact that this car seems to have a passive awd that isn't full time until demanded so I wasn't sure.
And I don't think I have any torque management going on because I have that disabled and I get big boost spikes of over 20 psi when I shift so I should spin pretty good on a 1-2 and 2-3 shift but I don't