[JEFF75645]

I had my Camaro Dyno tuned a few months ago, but ever since the car has been shifting really hard(A6). I mean to the point no one wants to drive it( possibly a good thing). But now no one even wants to ride in it any more. At low or high speed or rpm's it will snap your head back. I don't mind really but am worried about something breaking at some point. Any input is appreciated.