Check your VIN number. If the 7th space is an 'E', you may already be running at 619 HP. If there's an 'F' there, you've been de-tuned. I was F'ed!!! :-)
Just for grins, I took my VIN, changed the 7th position from an 'F' to and 'E', and reran the VIN checker. Sure enough, the altered VIN...