Bummer, went to do some work on my induction (Port throttle body, cold air tube, K&N, Pace Z06 MAF) and I noticed a pool of red liquid and a trail of it running down below it. Very small leak. It's the freeze plug on the very front of the passenger side head. What a bummer. So I kept the stock parts in the car until they can fix it. I wonder if they will just change the freeze plug out or if they will need to yank the head and motor.