Welp, that didn't help at all. I drove it again tonight and hit the throttle. The car would have crossed the yellow line on my left if I wasn't holding on. So, I let og of the wheel and she tracked fine, hit the gas, slightly, and to the left she went. Let off the gas and to the right she drifted. I recall reading something about this in another Z, so time to search.
'08 Alpine white E92 M3 with DTC--Sold
'12 Alpine white E92 335 Xdrive with slush box
'07 Summit white Chevy 2500 HD Duramax/Allison
'12 Alpine white Z4 35is via EuroDelivery June 4th