Originally Posted by Osiris

update: the drive back from the tuner was a 3 hour drive, per his suggestion, let the car sit for 2 hours to cool off. Afterwards, drove it around again and the knocking was gone. In addition, when the knocking was occurring, the idle sat at 1500 instead of 1000...after i let it cool, it was back to 1000. So he believes the car was heat soaked during my 3 hour drive back and the ecu switched into an alternate map due to the heat.

So, will be checking with Uprev and Stillen to try and remedy. Otherwise, the car drives great.