Yes there is datalogging for the factory KS. You can even output voltage to you CEL to light up if the knock gets to be too much. There is a knock control program that you can set up that will pull timing or reduce boost or fatten up the mixture or all three if knock gets to be too much. You can hook up a large red led to the EMS and tell it to turn on if any parameter is out of whack. On your datalogging screen, you can program any of the data boxes to turn red if it gets outside your set parameters. You can set up a boost cut, speed cut, etc. Its out of control what you can have the EMS do for you.Redline240 wrote:Does the EMS have a good knock sensor/meter too? That'd be another thing i wouldn't have to get...