Well the car had 300miles when I noticed the noise but i believe it was there all the time from the begining. I will post the build # when I get home. The noise is always there but increments with RPMs especialy from 2.5K-up. If you can hear valvetrain noise from inside your car while you are driving and windows rolled up you might have the problem. Also if you stand in front of your car at idle. In my case the problem was a defect of the rocker arms, but they need to replace all the parts I mentioned before sinse all are going to be affected. This is a serious condition bc's it causes the engine internals to deteriorate faster as all the small debris (pieces of metal) will make it to other components of the engine and cause premature engine failure.