Nice car man! I love coming across another member of the hood and hockey stripe family!
If the car has CAI and exhaust only, its unlikely that its tuned. The CEL could be anything, go to autozone (or similiar) and have them run the check on it. Do yourself a favor, take it to a tuner and have them verify what tune is in the car. If its the stock tune, which I am guessing, the fuse pull will take care of the 87 octane
but if its an aftermarket tune
