I was able to get the FSA 12B37 done this afternoon at dealer I bought car. Took me in right away and only had to wait 45-50 mins. I was thinking I had to drop it off for a day and get a ride to work. Phew!
Drives way way better in regular street traffic. No "bucking bronco" or rumble/flutter. I went through a left turn smoothly and didnt have to floor it. And was able to back out of a parking space with light pedal pressure.
Thanks to all who posted the FSA info here!