I did some same day testing at the track and the Cold Air Inductions intake (vs stock) netted me some gains that I could not find before I put it on. My thread is a long one, but I wanted to show as much detail as possible. As far as I know, I'm the only one to do track testing. There's plenty of variables that can come in to play on a dyno, so I trusted the track. I made 30+ passes this year bone stock, and the 1st pass I had the intake on, it dropped my ET .08 (I was struggling to find hundredths for months).
http://www.camaro6.com/forums/showthread.php?t=473466